172463928 has 192 divisors, whose sum is σ = 560196000. Its totient is φ = 43803648.

The previous prime is 172463911. The next prime is 172463971. The reversal of 172463928 is 829364271.

172463928 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 2×172463928² = 59487612922378368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 172463928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443158 + ... + 443546.

Almost surely, 2^172463928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172463928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280098000).

172463928 is an abundant number, since it is smaller than the sum of its proper divisors (387732072).

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

172463928 is a wasteful number, since it uses less digits than its factorization.

172463928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 443 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 172463928 is about 13132.5522271948. The cubic root of 172463928 is about 556.6293358658.

The spelling of 172463928 in words is "one hundred seventy-two million, four hundred sixty-three thousand, nine hundred twenty-eight".