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10440690 = 23513191409
BaseRepresentation
bin100111110100…
…111111110010
3201122102221020
4213310333302
510133100230
61011440310
7154513221
oct47647762
921572836
1010440690
115991277
1235b6096
132217330
14155acb8
15db3810
hex9f4ff2

10440690 has 64 divisors (see below), whose sum is σ = 28425600. Its totient is φ = 2433024.

The previous prime is 10440641. The next prime is 10440743. The reversal of 10440690 is 9604401.

It is a super-2 number, since 2×104406902 = 218016015352200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10440690.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6706 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (444150).

Almost surely, 210440690 is an apocalyptic number.

10440690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10440690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14212800).

10440690 is an abundant number, since it is smaller than the sum of its proper divisors (17984910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10440690 is a wasteful number, since it uses less digits than its factorization.

10440690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10440690 is about 3231.2056573360. The cubic root of 10440690 is about 218.5628778015.

The spelling of 10440690 in words is "ten million, four hundred forty thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 19 26 30 38 39 57 65 78 95 114 130 190 195 247 285 390 494 570 741 1235 1409 1482 2470 2818 3705 4227 7045 7410 8454 14090 18317 21135 26771 36634 42270 53542 54951 80313 91585 109902 133855 160626 183170 267710 274755 348023 401565 549510 696046 803130 1044069 1740115 2088138 3480230 5220345 10440690