172320060 has 96 divisors (see below), whose sum is σ = 530030592. Its totient is φ = 41483520.

The previous prime is 172320019. The next prime is 172320073. The reversal of 172320060 is 60023271.

It is a happy number.

It is a congruent number.

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, 102789 + ... + 104451.

It is an arithmetic number, because the mean of its divisors is an integer number (5521152).

Almost surely, 2^172320060 is an apocalyptic number.

172320060 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 172320060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265015296).

172320060 is an abundant number, since it is smaller than the sum of its proper divisors (357710532).

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

172320060 is a wasteful number, since it uses less digits than its factorization.

172320060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 172320060 is about 13127.0735504910. The cubic root of 172320060 is about 556.4745142591.

The spelling of 172320060 in words is "one hundred seventy-two million, three hundred twenty thousand, sixty".