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40995817 is a prime number
BaseRepresentation
bin1001110001100…
…0101111101001
32212010210200121
42130120233221
540443331232
64022403241
71005313222
oct234305751
985123617
1040995817
1121160845
1211890521
138654ba5
145632249
1538ebd97
hex2718be9

40995817 has 2 divisors, whose sum is σ = 40995818. Its totient is φ = 40995816.

The previous prime is 40995793. The next prime is 40995827. The reversal of 40995817 is 71859904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 4260096 = 6061^2 + 2064^2 .

It is a cyclic number.

It is not a de Polignac number, because 40995817 - 215 = 40963049 is a prime.

It is a super-2 number, since 2×409958172 = 3361314022994978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40995827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20497908 + 20497909.

It is an arithmetic number, because the mean of its divisors is an integer number (20497909).

Almost surely, 240995817 is an apocalyptic number.

It is an amenable number.

40995817 is a deficient number, since it is larger than the sum of its proper divisors (1).

40995817 is an equidigital number, since it uses as much as digits as its factorization.

40995817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 40995817 is about 6402.7975916782. The cubic root of 40995817 is about 344.8099968974.

The spelling of 40995817 in words is "forty million, nine hundred ninety-five thousand, eight hundred seventeen".