172924980 has 24 divisors (see below), whose sum is σ = 484190112. Its totient is φ = 46113312.

The previous prime is 172924979. The next prime is 172924987. The reversal of 172924980 is 89429271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172924987) 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 7 ways as a sum of consecutive naturals, for example, 1440982 + ... + 1441101.

It is an arithmetic number, because the mean of its divisors is an integer number (20174588).

Almost surely, 2^172924980 is an apocalyptic number.

172924980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172924980 is an abundant number, since it is smaller than the sum of its proper divisors (311265132).

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

172924980 is a wasteful number, since it uses less digits than its factorization.

172924980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882095 (or 2882093 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 172924980 is about 13150.0942962399. The cubic root of 172924980 is about 557.1249114160.

The spelling of 172924980 in words is "one hundred seventy-two million, nine hundred twenty-four thousand, nine hundred eighty".