40318864 has 20 divisors (see below), whose sum is σ = 79935856. Its totient is φ = 19690272.

The previous prime is 40318847. The next prime is 40318877. The reversal of 40318864 is 46881304.

40318864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40318864² = 3251221588500992, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28614 + ... + 29989.

Almost surely, 2^40318864 is an apocalyptic number.

It is an amenable number.

40318864 is a deficient number, since it is larger than the sum of its proper divisors (39616992).

40318864 is a wasteful number, since it uses less digits than its factorization.

40318864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58654 (or 58648 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 40318864 is about 6349.7136943330. The cubic root of 40318864 is about 342.9015348605.

The spelling of 40318864 in words is "forty million, three hundred eighteen thousand, eight hundred sixty-four".