172307680 has 48 divisors (see below), whose sum is σ = 408076704. Its totient is φ = 68753920.

The previous prime is 172307659. The next prime is 172307689. The reversal of 172307680 is 86703271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172307689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79410 + ... + 81550.

It is an arithmetic number, because the mean of its divisors is an integer number (8501598).

Almost surely, 2^172307680 is an apocalyptic number.

172307680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172307680 is an abundant number, since it is smaller than the sum of its proper divisors (235769024).

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

172307680 is a wasteful number, since it uses less digits than its factorization.

172307680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2651 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 172307680 is about 13126.6019974706. The cubic root of 172307680 is about 556.4611876631.

The spelling of 172307680 in words is "one hundred seventy-two million, three hundred seven thousand, six hundred eighty".