40306864 has 40 divisors (see below), whose sum is σ = 89056800. Its totient is φ = 17507328.

The previous prime is 40306843. The next prime is 40306873. The reversal of 40306864 is 46860304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (2226420).

Almost surely, 2^40306864 is an apocalyptic number.

It is an amenable number.

40306864 is an abundant number, since it is smaller than the sum of its proper divisors (48749936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40306864 is a wasteful number, since it uses less digits than its factorization.

40306864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437 (or 11431 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40306864 is about 6348.7686995196. The cubic root of 40306864 is about 342.8675125171.

The spelling of 40306864 in words is "forty million, three hundred six thousand, eight hundred sixty-four".