172572630 has 32 divisors (see below), whose sum is σ = 435974400. Its totient is φ = 43597152.

The previous prime is 172572619. The next prime is 172572643. The reversal of 172572630 is 36275271.

It is a super-3 number, since 3×172572630³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172572591 and 172572600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150810 + ... + 151949.

It is an arithmetic number, because the mean of its divisors is an integer number (13624200).

Almost surely, 2^172572630 is an apocalyptic number.

172572630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172572630 is an abundant number, since it is smaller than the sum of its proper divisors (263401770).

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

172572630 is a wasteful number, since it uses less digits than its factorization.

172572630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302788.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 172572630 is about 13136.6902224267. The cubic root of 172572630 is about 556.7462569615.

The spelling of 172572630 in words is "one hundred seventy-two million, five hundred seventy-two thousand, six hundred thirty".