172494168 has 128 divisors (see below), whose sum is σ = 555171840. Its totient is φ = 43344000.

The previous prime is 172494151. The next prime is 172494191. The reversal of 172494168 is 861494271.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55783 + ... + 58793.

It is an arithmetic number, because the mean of its divisors is an integer number (4337280).

Almost surely, 2^172494168 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 172494168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277585920).

172494168 is an abundant number, since it is smaller than the sum of its proper divisors (382677672).

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

172494168 is a wasteful number, since it uses less digits than its factorization.

172494168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3065 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 172494168 is about 13133.7035142415. The cubic root of 172494168 is about 556.6618672819.

The spelling of 172494168 in words is "one hundred seventy-two million, four hundred ninety-four thousand, one hundred sixty-eight".