64999044 has 48 divisors (see below), whose sum is σ = 183839040. Its totient is φ = 19696320.

The previous prime is 64999037. The next prime is 64999087. The reversal of 64999044 is 44099946.

64999044 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

64999044 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26169 + ... + 28544.

It is an arithmetic number, because the mean of its divisors is an integer number (3829980).

Almost surely, 2^64999044 is an apocalyptic number.

It is an amenable number.

64999044 is an abundant number, since it is smaller than the sum of its proper divisors (118839996).

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

64999044 is a wasteful number, since it uses less digits than its factorization.

64999044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54737 (or 54729 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 64999044 is about 8062.1984594774. The cubic root of 64999044 is about 402.0706046627.

The spelling of 64999044 in words is "sixty-four million, nine hundred ninety-nine thousand, forty-four".