64018172 has 12 divisors (see below), whose sum is σ = 112302120. Its totient is φ = 31931856.

The previous prime is 64018169. The next prime is 64018187. The reversal of 64018172 is 27181046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17423 + ... + 20774.

It is an arithmetic number, because the mean of its divisors is an integer number (9358510).

Almost surely, 2^64018172 is an apocalyptic number.

It is an amenable number.

64018172 is a deficient number, since it is larger than the sum of its proper divisors (48283948).

64018172 is a wasteful number, since it uses less digits than its factorization.

64018172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38620 (or 38618 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 64018172 is about 8001.1356693909. The cubic root of 64018172 is about 400.0378547508.

The spelling of 64018172 in words is "sixty-four million, eighteen thousand, one hundred seventy-two".