64430172 has 36 divisors (see below), whose sum is σ = 167270376. Its totient is φ = 20895840.

The previous prime is 64430167. The next prime is 64430189. The reversal of 64430172 is 27103446.

64430172 is a `hidden beast` number, since 64 + 430 + 172 = 666.

64430172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22854 + ... + 25517.

Almost surely, 2^64430172 is an apocalyptic number.

It is an amenable number.

64430172 is an abundant number, since it is smaller than the sum of its proper divisors (102840204).

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

64430172 is a wasteful number, since it uses less digits than its factorization.

64430172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48418 (or 48413 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64430172 is about 8026.8407234727. The cubic root of 64430172 is about 400.8941912322.

The spelling of 64430172 in words is "sixty-four million, four hundred thirty thousand, one hundred seventy-two".