172227264 has 56 divisors (see below), whose sum is σ = 497116608. Its totient is φ = 52189440.

The previous prime is 172227239. The next prime is 172227277. The reversal of 172227264 is 462722271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38662 + ... + 42885.

Almost surely, 2^172227264 is an apocalyptic number.

It is an amenable number.

172227264 is an abundant number, since it is smaller than the sum of its proper divisors (324889344).

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

172227264 is a wasteful number, since it uses less digits than its factorization.

172227264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81573 (or 81563 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 172227264 is about 13123.5385472059. The cubic root of 172227264 is about 556.3746073744.

Adding to 172227264 its product of digits (18816), we get a triangular number (172246080 = T₁₈₅₆₀).

The spelling of 172227264 in words is "one hundred seventy-two million, two hundred twenty-seven thousand, two hundred sixty-four".