40064064 has 28 divisors (see below), whose sum is σ = 106003344. Its totient is φ = 13354624.

The previous prime is 40064033. The next prime is 40064077. The reversal of 40064064 is 46046004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104142 + ... + 104525.

Almost surely, 2^40064064 is an apocalyptic number.

It is an amenable number.

40064064 is an abundant number, since it is smaller than the sum of its proper divisors (65939280).

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

40064064 is a wasteful number, since it uses less digits than its factorization.

40064064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208682 (or 208672 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40064064 is about 6329.6179979522. The cubic root of 40064064 is about 342.1776717804.

The spelling of 40064064 in words is "forty million, sixty-four thousand, sixty-four", and thus it is an eban number.