40492931 has 2 divisors, whose sum is σ = 40492932. Its totient is φ = 40492930.

The previous prime is 40492919. The next prime is 40492937. The reversal of 40492931 is 13929404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40492931 - 2⁶ = 40492867 is a prime.

It is a super-2 number, since 2×40492931² = 3279354921941522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40492937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20246465 + 20246466.

It is an arithmetic number, because the mean of its divisors is an integer number (20246466).

Almost surely, 2^40492931 is an apocalyptic number.

40492931 is a deficient number, since it is larger than the sum of its proper divisors (1).

40492931 is an equidigital number, since it uses as much as digits as its factorization.

40492931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40492931 is about 6363.4056133489. The cubic root of 40492931 is about 343.3942913936.

The spelling of 40492931 in words is "forty million, four hundred ninety-two thousand, nine hundred thirty-one".