64044660 has 24 divisors (see below), whose sum is σ = 179325216. Its totient is φ = 17078560.

The previous prime is 64044653. The next prime is 64044683. The reversal of 64044660 is 6644046.

It is a hoax number, since the sum of its digits (30) 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 (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533646 + ... + 533765.

It is an arithmetic number, because the mean of its divisors is an integer number (7471884).

Almost surely, 2^64044660 is an apocalyptic number.

64044660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64044660 is an abundant number, since it is smaller than the sum of its proper divisors (115280556).

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

64044660 is a wasteful number, since it uses less digits than its factorization.

64044660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067423 (or 1067421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 64044660 is about 8002.7907632275. The cubic root of 64044660 is about 400.0930200332.

The spelling of 64044660 in words is "sixty-four million, forty-four thousand, six hundred sixty".