172300380 has 48 divisors (see below), whose sum is σ = 551362560. Its totient is φ = 39382848.

The previous prime is 172300361. The next prime is 172300391. The reversal of 172300380 is 83003271.

It is a self number, because there is not a number n which added to its sum of digits gives 172300380.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 204700 + ... + 205539.

It is an arithmetic number, because the mean of its divisors is an integer number (11486720).

Almost surely, 2^172300380 is an apocalyptic number.

172300380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172300380 is an abundant number, since it is smaller than the sum of its proper divisors (379062180).

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

172300380 is a wasteful number, since it uses less digits than its factorization.

172300380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410258 (or 410256 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 172300380 is about 13126.3239332267. The cubic root of 172300380 is about 556.4533291934.

The spelling of 172300380 in words is "one hundred seventy-two million, three hundred thousand, three hundred eighty".