40164831 has 48 divisors (see below), whose sum is σ = 70626816. Its totient is φ = 21498048.

The previous prime is 40164821. The next prime is 40164857. The reversal of 40164831 is 13846104.

It is not a de Polignac number, because 40164831 - 2⁵ = 40164799 is a prime.

It is a super-2 number, since 2×40164831² = 3226427298517122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40164795 and 40164804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40164821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76536 + ... + 77058.

It is an arithmetic number, because the mean of its divisors is an integer number (1471392).

Almost surely, 2^40164831 is an apocalyptic number.

40164831 is a deficient number, since it is larger than the sum of its proper divisors (30461985).

40164831 is a wasteful number, since it uses less digits than its factorization.

40164831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40164831 is about 6337.5729581599. The cubic root of 40164831 is about 342.4643072898.

The spelling of 40164831 in words is "forty million, one hundred sixty-four thousand, eight hundred thirty-one".