64457312 has 24 divisors (see below), whose sum is σ = 127083096. Its totient is φ = 32182272.

The previous prime is 64457299. The next prime is 64457333. The reversal of 64457312 is 21375446.

64457312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36023 + ... + 37769.

It is an arithmetic number, because the mean of its divisors is an integer number (5295129).

Almost surely, 2^64457312 is an apocalyptic number.

It is an amenable number.

64457312 is a deficient number, since it is larger than the sum of its proper divisors (62625784).

64457312 is a wasteful number, since it uses less digits than its factorization.

64457312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2902 counting only the distinct ones).

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

The square root of 64457312 is about 8028.5311234372. The cubic root of 64457312 is about 400.9504730469.

The spelling of 64457312 in words is "sixty-four million, four hundred fifty-seven thousand, three hundred twelve".