172572430 has 8 divisors (see below), whose sum is σ = 310630392. Its totient is φ = 69028968.

The previous prime is 172572353. The next prime is 172572451. The reversal of 172572430 is 34275271.

172572430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×172572430² = 59562487192209800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172572392 and 172572401.

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, 8628612 + ... + 8628631.

It is an arithmetic number, because the mean of its divisors is an integer number (38828799).

Almost surely, 2^172572430 is an apocalyptic number.

172572430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172572430 is a deficient number, since it is larger than the sum of its proper divisors (138057962).

172572430 is a wasteful number, since it uses less digits than its factorization.

172572430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17257250.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 172572430 is about 13136.6826101569. The cubic root of 172572430 is about 556.7460418843.

The spelling of 172572430 in words is "one hundred seventy-two million, five hundred seventy-two thousand, four hundred thirty".