172231488 has 448 divisors, whose sum is σ = 645200640. Its totient is φ = 44236800.

The previous prime is 172231459. The next prime is 172231511. The reversal of 172231488 is 884132271.

172231488 is a `hidden beast` number, since 172 + 2 + 3 + 1 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4200748 + ... + 4200788.

It is an arithmetic number, because the mean of its divisors is an integer number (1440180).

Almost surely, 2^172231488 is an apocalyptic number.

172231488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172231488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322600320).

172231488 is an abundant number, since it is smaller than the sum of its proper divisors (472969152).

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

172231488 is a wasteful number, since it uses less digits than its factorization.

172231488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 87 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 172231488 is about 13123.6994784245. The cubic root of 172231488 is about 556.3791558357.

The spelling of 172231488 in words is "one hundred seventy-two million, two hundred thirty-one thousand, four hundred eighty-eight".