172223752 has 64 divisors (see below), whose sum is σ = 353491200. Its totient is φ = 78382080.

The previous prime is 172223699. The next prime is 172223759. The reversal of 172223752 is 257322271.

It is a super-2 number, since 2×172223752² = 59322041505915008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172223759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635377 + ... + 635647.

It is an arithmetic number, because the mean of its divisors is an integer number (5523300).

Almost surely, 2^172223752 is an apocalyptic number.

It is an amenable number.

172223752 is an abundant number, since it is smaller than the sum of its proper divisors (181267448).

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

172223752 is a wasteful number, since it uses less digits than its factorization.

172223752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 172223752 is about 13123.4047411485. The cubic root of 172223752 is about 556.3708255478.

The spelling of 172223752 in words is "one hundred seventy-two million, two hundred twenty-three thousand, seven hundred fifty-two".