172324680 has 128 divisors (see below), whose sum is σ = 593740800. Its totient is φ = 39571200.

The previous prime is 172324679. The next prime is 172324751. The reversal of 172324680 is 86423271.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21645 + ... + 28515.

It is an arithmetic number, because the mean of its divisors is an integer number (4638600).

Almost surely, 2^172324680 is an apocalyptic number.

172324680 is a gapful number since it is divisible by the number (10) 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 172324680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296870400).

172324680 is an abundant number, since it is smaller than the sum of its proper divisors (421416120).

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

172324680 is a wasteful number, since it uses less digits than its factorization.

172324680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 172324680 is about 13127.2495215106. The cubic root of 172324680 is about 556.4794873486.

It can be divided in two parts, 17232 and 4680, that added together give a palindrome (21912).

The spelling of 172324680 in words is "one hundred seventy-two million, three hundred twenty-four thousand, six hundred eighty".