172464012 has 48 divisors (see below), whose sum is σ = 511006720. Its totient is φ = 49275216.

The previous prime is 172463987. The next prime is 172464077. The reversal of 172464012 is 210464271.

172464012 is a `hidden beast` number, since 1 + 7 + 2 + 4 + 640 + 12 = 666.

172464012 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 2×172464012² = 59487670870272288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113308 + ... + 114819.

Almost surely, 2^172464012 is an apocalyptic number.

172464012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172464012 is an abundant number, since it is smaller than the sum of its proper divisors (338542708).

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

172464012 is a wasteful number, since it uses less digits than its factorization.

172464012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228147 (or 228139 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 172464012 is about 13132.5554253542. Note that the first 3 decimals coincide. The cubic root of 172464012 is about 556.6294262361.

The spelling of 172464012 in words is "one hundred seventy-two million, four hundred sixty-four thousand, twelve".