64504444 has 12 divisors (see below), whose sum is σ = 112962304. Its totient is φ = 32229504.

The previous prime is 64504421. The next prime is 64504463. The reversal of 64504444 is 44440546.

64504444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1804 + ... + 11500.

Almost surely, 2^64504444 is an apocalyptic number.

It is an amenable number.

64504444 is a deficient number, since it is larger than the sum of its proper divisors (48457860).

64504444 is a wasteful number, since it uses less digits than its factorization.

64504444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11364 (or 11362 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 64504444 is about 8031.4658686942. The cubic root of 64504444 is about 401.0481759189.

The spelling of 64504444 in words is "sixty-four million, five hundred four thousand, four hundred forty-four".