64468044 has 36 divisors (see below), whose sum is σ = 168582960. Its totient is φ = 20748000.

The previous prime is 64468021. The next prime is 64468049. The reversal of 64468044 is 44086446.

64468044 is a `hidden beast` number, since 644 + 6 + 8 + 0 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×64468044² = 8312257394371872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64468049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29832 + ... + 31919.

It is an arithmetic number, because the mean of its divisors is an integer number (4682860).

Almost surely, 2^64468044 is an apocalyptic number.

It is an amenable number.

64468044 is an abundant number, since it is smaller than the sum of its proper divisors (104114916).

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

64468044 is a wasteful number, since it uses less digits than its factorization.

64468044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61790 (or 61785 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 64468044 is about 8029.1994619638. The cubic root of 64468044 is about 400.9727242679.

The spelling of 64468044 in words is "sixty-four million, four hundred sixty-eight thousand, forty-four".