172368922 has 16 divisors (see below), whose sum is σ = 285459552. Its totient is φ = 77404720.

The previous prime is 172368919. The next prime is 172368929. The reversal of 172368922 is 229863271.

It is a super-2 number, since 2×172368922² = 59422090542884168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172368929) 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, 45373 + ... + 49024.

It is an arithmetic number, because the mean of its divisors is an integer number (17841222).

Almost surely, 2^172368922 is an apocalyptic number.

172368922 is a deficient number, since it is larger than the sum of its proper divisors (113090630).

172368922 is a wasteful number, since it uses less digits than its factorization.

172368922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94493.

The product of its digits is 72576, while the sum is 40.

The square root of 172368922 is about 13128.9345340740. The cubic root of 172368922 is about 556.5271061011.

The spelling of 172368922 in words is "one hundred seventy-two million, three hundred sixty-eight thousand, nine hundred twenty-two".