172422768 has 60 divisors (see below), whose sum is σ = 518155080. Its totient is φ = 49262976.

The previous prime is 172422709. The next prime is 172422769. The reversal of 172422768 is 867224271.

172422768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172422768² = 59459221849563648, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172422769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34303 + ... + 39006.

It is an arithmetic number, because the mean of its divisors is an integer number (8635918).

Almost surely, 2^172422768 is an apocalyptic number.

It is an amenable number.

172422768 is an abundant number, since it is smaller than the sum of its proper divisors (345732312).

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

172422768 is a wasteful number, since it uses less digits than its factorization.

172422768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73334 (or 73321 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 172422768 is about 13130.9850354039. The cubic root of 172422768 is about 556.5850508828.

The spelling of 172422768 in words is "one hundred seventy-two million, four hundred twenty-two thousand, seven hundred sixty-eight".