172402330 has 16 divisors (see below), whose sum is σ = 311952384. Its totient is φ = 68599120.

The previous prime is 172402313. The next prime is 172402367. The reversal of 172402330 is 33204271.

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 7 ways as a sum of consecutive naturals, for example, 43222 + ... + 47041.

It is an arithmetic number, because the mean of its divisors is an integer number (19497024).

Almost surely, 2^172402330 is an apocalyptic number.

172402330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172402330 is a deficient number, since it is larger than the sum of its proper divisors (139550054).

172402330 is a wasteful number, since it uses less digits than its factorization.

172402330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90461.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 172402330 is about 13130.2067767419. The cubic root of 172402330 is about 556.5630585538.

The spelling of 172402330 in words is "one hundred seventy-two million, four hundred two thousand, three hundred thirty".