40704656 has 10 divisors (see below), whose sum is σ = 78865302. Its totient is φ = 20352320.

The previous prime is 40704649. The next prime is 40704667. The reversal of 40704656 is 65640704.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 256 = 6380^2 + 16^2 .

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, 1272005 + ... + 1272036.

Almost surely, 2^40704656 is an apocalyptic number.

It is an amenable number.

40704656 is a deficient number, since it is larger than the sum of its proper divisors (38160646).

40704656 is a wasteful number, since it uses less digits than its factorization.

40704656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544049 (or 2544043 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40704656 is about 6380.0200626644. The cubic root of 40704656 is about 343.9917521008.

The spelling of 40704656 in words is "forty million, seven hundred four thousand, six hundred fifty-six".