164430872 has 16 divisors (see below), whose sum is σ = 310156560. Its totient is φ = 81722464.

The previous prime is 164430767. The next prime is 164430907. The reversal of 164430872 is 278034461.

It is a super-3 number, since 3×164430872³ (a number of 26 digits) contains 333 as substring.

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, 60203 + ... + 62874.

It is an arithmetic number, because the mean of its divisors is an integer number (19384785).

Almost surely, 2^164430872 is an apocalyptic number.

It is an amenable number.

164430872 is a deficient number, since it is larger than the sum of its proper divisors (145725688).

164430872 is a wasteful number, since it uses less digits than its factorization.

164430872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123250 (or 123246 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 164430872 is about 12823.0601651868. The cubic root of 164430872 is about 547.8493112234.

The spelling of 164430872 in words is "one hundred sixty-four million, four hundred thirty thousand, eight hundred seventy-two".