64044996 has 12 divisors (see below), whose sum is σ = 149438352. Its totient is φ = 21348328.

The previous prime is 64044979. The next prime is 64044997. The reversal of 64044996 is 69944046.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64044997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668530 + ... + 2668553.

It is an arithmetic number, because the mean of its divisors is an integer number (12453196).

Almost surely, 2^64044996 is an apocalyptic number.

It is an amenable number.

64044996 is an abundant number, since it is smaller than the sum of its proper divisors (85393356).

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

64044996 is a wasteful number, since it uses less digits than its factorization.

64044996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337090 (or 5337088 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 64044996 is about 8002.8117558768. The cubic root of 64044996 is about 400.0937197065.

The spelling of 64044996 in words is "sixty-four million, forty-four thousand, nine hundred ninety-six".