172306330 has 16 divisors (see below), whose sum is σ = 354458880. Its totient is φ = 59076432.

The previous prime is 172306327. The next prime is 172306349. The reversal of 172306330 is 33603271.

172306330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172306295 and 172306304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230690 + ... + 1230829.

It is an arithmetic number, because the mean of its divisors is an integer number (22153680).

Almost surely, 2^172306330 is an apocalyptic number.

172306330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172306330 is an abundant number, since it is smaller than the sum of its proper divisors (182152550).

172306330 is a wasteful number, since it uses less digits than its factorization.

172306330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461533.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 172306330 is about 13126.5505750749. The cubic root of 172306330 is about 556.4597344011.

The spelling of 172306330 in words is "one hundred seventy-two million, three hundred six thousand, three hundred thirty".