40056664 has 16 divisors (see below), whose sum is σ = 75174120. Its totient is φ = 20010240.

The previous prime is 40056659. The next prime is 40056671. The reversal of 40056664 is 46665004.

40056664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 14152 + ... + 16744.

Almost surely, 2^40056664 is an apocalyptic number.

It is an amenable number.

40056664 is a deficient number, since it is larger than the sum of its proper divisors (35117456).

40056664 is a wasteful number, since it uses less digits than its factorization.

40056664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530 (or 4526 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40056664 is about 6329.0334175133. The cubic root of 40056664 is about 342.1566032681.

The spelling of 40056664 in words is "forty million, fifty-six thousand, six hundred sixty-four".