172272384 has 54 divisors (see below), whose sum is σ = 496710396. Its totient is φ = 57423360.

The previous prime is 172272371. The next prime is 172272409. The reversal of 172272384 is 483272271.

172272384 is a `hidden beast` number, since 1 + 7 + 2 + 272 + 384 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35082 + ... + 39689.

Almost surely, 2^172272384 is an apocalyptic number.

It is an amenable number.

172272384 is an abundant number, since it is smaller than the sum of its proper divisors (324438012).

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

172272384 is an equidigital number, since it uses as much as digits as its factorization.

172272384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74793 (or 74776 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 172272384 is about 13125.2574831887. The cubic root of 172272384 is about 556.4231893658.

The spelling of 172272384 in words is "one hundred seventy-two million, two hundred seventy-two thousand, three hundred eighty-four".