178130232 has 64 divisors (see below), whose sum is σ = 565497600. Its totient is φ = 50893920.

The previous prime is 178130231. The next prime is 178130261. The reversal of 178130232 is 232031871.

It is a super-3 number, since 3×178130232³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 178130196 and 178130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (178130231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57394 + ... + 60417.

It is an arithmetic number, because the mean of its divisors is an integer number (8835900).

Almost surely, 2^178130232 is an apocalyptic number.

178130232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

178130232 is an abundant number, since it is smaller than the sum of its proper divisors (387367368).

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

178130232 is a wasteful number, since it uses less digits than its factorization.

178130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117833 (or 117823 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 178130232 is about 13346.5438222785. The cubic root of 178130232 is about 562.6597874943.

The spelling of 178130232 in words is "one hundred seventy-eight million, one hundred thirty thousand, two hundred thirty-two".