40657964 has 12 divisors (see below), whose sum is σ = 72318288. Its totient is φ = 19995600.

The previous prime is 40657933. The next prime is 40657973. The reversal of 40657964 is 46975604.

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 3 ways as a sum of consecutive naturals, for example, 83072 + ... + 83559.

It is an arithmetic number, because the mean of its divisors is an integer number (6026524).

Almost surely, 2^40657964 is an apocalyptic number.

It is an amenable number.

40657964 is a deficient number, since it is larger than the sum of its proper divisors (31660324).

40657964 is a wasteful number, since it uses less digits than its factorization.

40657964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166696 (or 166694 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 40657964 is about 6376.3597765496. The cubic root of 40657964 is about 343.8601716725.

The spelling of 40657964 in words is "forty million, six hundred fifty-seven thousand, nine hundred sixty-four".