172922464 has 192 divisors, whose sum is σ = 438939648. Its totient is φ = 65894400.

The previous prime is 172922459. The next prime is 172922507. The reversal of 172922464 is 464229271.

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, 3262662 + ... + 3262714.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144).

Almost surely, 2^172922464 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 172922464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219469824).

172922464 is an abundant number, since it is smaller than the sum of its proper divisors (266017184).

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

172922464 is a wasteful number, since it uses less digits than its factorization.

172922464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 133 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 172922464 is about 13149.9986311786. The cubic root of 172922464 is about 557.1222094098.

The spelling of 172922464 in words is "one hundred seventy-two million, nine hundred twenty-two thousand, four hundred sixty-four".