172224768 has 36 divisors (see below), whose sum is σ = 458371088. Its totient is φ = 57408000.

The previous prime is 172224733. The next prime is 172224781. The reversal of 172224768 is 867422271.

It is a super-2 number, since 2×172224768² = 59322741425307648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111358 + ... + 112893.

Almost surely, 2^172224768 is an apocalyptic number.

It is an amenable number.

172224768 is an abundant number, since it is smaller than the sum of its proper divisors (286146320).

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

172224768 is an equidigital number, since it uses as much as digits as its factorization.

172224768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224270 (or 224256 counting only the distinct ones).

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

The square root of 172224768 is about 13123.4434505582. The cubic root of 172224768 is about 556.3719196123.

The spelling of 172224768 in words is "one hundred seventy-two million, two hundred twenty-four thousand, seven hundred sixty-eight".