172018672 has 40 divisors (see below), whose sum is σ = 381868416. Its totient is φ = 73534656.

The previous prime is 172018621. The next prime is 172018697. The reversal of 172018672 is 276810271.

It is a happy number.

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, 47883 + ... + 51349.

Almost surely, 2^172018672 is an apocalyptic number.

It is an amenable number.

172018672 is an abundant number, since it is smaller than the sum of its proper divisors (209849744).

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

172018672 is a wasteful number, since it uses less digits than its factorization.

172018672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925 (or 3919 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 172018672 is about 13115.5888926117. The cubic root of 172018672 is about 556.1499000619.

The spelling of 172018672 in words is "one hundred seventy-two million, eighteen thousand, six hundred seventy-two".