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40452641 is a prime number
BaseRepresentation
bin1001101001010…
…0001000100001
32211010012120222
42122110020201
540323441031
64003012425
71000561505
oct232241041
984105528
1040452641
112091a739
121166a115
1384c4898
145530305
153840e7b
hex2694221

40452641 has 2 divisors, whose sum is σ = 40452642. Its totient is φ = 40452640.

The previous prime is 40452631. The next prime is 40452679. The reversal of 40452641 is 14625404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 16638241 = 4880^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 40452641 - 210 = 40451617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40452641.

It is not a weakly prime, because it can be changed into another prime (40452611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20226320 + 20226321.

It is an arithmetic number, because the mean of its divisors is an integer number (20226321).

Almost surely, 240452641 is an apocalyptic number.

It is an amenable number.

40452641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452641 is an equidigital number, since it uses as much as digits as its factorization.

40452641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40452641 is about 6360.2390678338. The cubic root of 40452641 is about 343.2803624775.

The spelling of 40452641 in words is "forty million, four hundred fifty-two thousand, six hundred forty-one".