40664956 has 12 divisors (see below), whose sum is σ = 71220240. Its totient is φ = 20316320.

The previous prime is 40664941. The next prime is 40664977. The reversal of 40664956 is 65946604.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976 + ... + 9496.

It is an arithmetic number, because the mean of its divisors is an integer number (5935020).

Almost surely, 2^40664956 is an apocalyptic number.

It is an amenable number.

40664956 is a deficient number, since it is larger than the sum of its proper divisors (30555284).

40664956 is a wasteful number, since it uses less digits than its factorization.

40664956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084 (or 8082 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 40664956 is about 6376.9080281905. The cubic root of 40664956 is about 343.8798818947.

The spelling of 40664956 in words is "forty million, six hundred sixty-four thousand, nine hundred fifty-six".