172272324 has 48 divisors (see below), whose sum is σ = 470606976. Its totient is φ = 48019200.

The previous prime is 172272311. The next prime is 172272329. The reversal of 172272324 is 423272271.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 172272291 and 172272300.

It is not an unprimeable number, because it can be changed into a prime (172272329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21567 + ... + 28454.

It is an arithmetic number, because the mean of its divisors is an integer number (9804312).

Almost surely, 2^172272324 is an apocalyptic number.

172272324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

172272324 is an abundant number, since it is smaller than the sum of its proper divisors (298334652).

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

172272324 is a wasteful number, since it uses less digits than its factorization.

172272324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50076 (or 50074 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 172272324 is about 13125.2551975190. The cubic root of 172272324 is about 556.4231247677.

The spelling of 172272324 in words is "one hundred seventy-two million, two hundred seventy-two thousand, three hundred twenty-four".