172372994 has 16 divisors (see below), whose sum is σ = 270691200. Its totient is φ = 82167360.

The previous prime is 172372961. The next prime is 172372999. The reversal of 172372994 is 499273271.

It is not an unprimeable number, because it can be changed into a prime (172372999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8282 + ... + 20330.

It is an arithmetic number, because the mean of its divisors is an integer number (16918200).

Almost surely, 2^172372994 is an apocalyptic number.

172372994 is a deficient number, since it is larger than the sum of its proper divisors (98318206).

172372994 is a wasteful number, since it uses less digits than its factorization.

172372994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385.

The product of its digits is 190512, while the sum is 44.

The square root of 172372994 is about 13129.0896104795. The cubic root of 172372994 is about 556.5314884853.

The spelling of 172372994 in words is "one hundred seventy-two million, three hundred seventy-two thousand, nine hundred ninety-four".