40660256 has 48 divisors (see below), whose sum is σ = 98529984. Its totient is φ = 16084224.

The previous prime is 40660237. The next prime is 40660303. The reversal of 40660256 is 65206604.

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 in 7 ways as a sum of consecutive naturals, for example, 4070 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (2052708).

Almost surely, 2^40660256 is an apocalyptic number.

It is an amenable number.

40660256 is an abundant number, since it is smaller than the sum of its proper divisors (57869728).

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

40660256 is a wasteful number, since it uses less digits than its factorization.

40660256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13993 (or 13985 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40660256 is about 6376.5395003873. The cubic root of 40660256 is about 343.8666329954.

The spelling of 40660256 in words is "forty million, six hundred sixty thousand, two hundred fifty-six".