233981172 has 36 divisors (see below), whose sum is σ = 591930976. Its totient is φ = 77930640.

The previous prime is 233981147. The next prime is 233981179. The reversal of 233981172 is 271189332.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233981179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69897 + ... + 73167.

Almost surely, 2^233981172 is an apocalyptic number.

It is an amenable number.

233981172 is an abundant number, since it is smaller than the sum of its proper divisors (357949804).

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

233981172 is a wasteful number, since it uses less digits than its factorization.

233981172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268 (or 5263 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 233981172 is about 15296.4431159665. The cubic root of 233981172 is about 616.2074868875.

The spelling of 233981172 in words is "two hundred thirty-three million, nine hundred eighty-one thousand, one hundred seventy-two".