40930731 has 32 divisors (see below), whose sum is σ = 66624000. Its totient is φ = 24719904.

The previous prime is 40930709. The next prime is 40930733. The reversal of 40930731 is 13703904.

40930731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40930731 - 2¹⁵ = 40897963 is a prime.

It is a super-2 number, since 2×40930731² = 3350649480388722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40930695 and 40930704.

It is not an unprimeable number, because it can be changed into a prime (40930733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10065 + ... + 13533.

It is an arithmetic number, because the mean of its divisors is an integer number (2082000).

Almost surely, 2^40930731 is an apocalyptic number.

40930731 is a deficient number, since it is larger than the sum of its proper divisors (25693269).

40930731 is a wasteful number, since it uses less digits than its factorization.

40930731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520 (or 3514 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 40930731 is about 6397.7129507348. The cubic root of 40930731 is about 344.6274238754.

The spelling of 40930731 in words is "forty million, nine hundred thirty thousand, seven hundred thirty-one".