40656064 has 14 divisors (see below), whose sum is σ = 80677004. Its totient is φ = 20328000.

The previous prime is 40656059. The next prime is 40656071. The reversal of 40656064 is 46065604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317562 + ... + 317689.

Almost surely, 2^40656064 is an apocalyptic number.

It is an amenable number.

40656064 is a deficient number, since it is larger than the sum of its proper divisors (40020940).

40656064 is an equidigital number, since it uses as much as digits as its factorization.

40656064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635263 (or 635253 counting only the distinct ones).

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

The square root of 40656064 is about 6376.2107869800. The cubic root of 40656064 is about 343.8548152434.

The spelling of 40656064 in words is "forty million, six hundred fifty-six thousand, sixty-four".