231789168 has 160 divisors (see below), whose sum is σ = 723912000. Its totient is φ = 70585344.

The previous prime is 231789167. The next prime is 231789191. The reversal of 231789168 is 861987132.

It is a super-4 number, since 4×231789168⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231789161) 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 31 ways as a sum of consecutive naturals, for example, 836646 + ... + 836922.

It is an arithmetic number, because the mean of its divisors is an integer number (4524450).

Almost surely, 2^231789168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231789168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361956000).

231789168 is an abundant number, since it is smaller than the sum of its proper divisors (492122832).

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

231789168 is a wasteful number, since it uses less digits than its factorization.

231789168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 444 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 231789168 is about 15224.6237391930. The cubic root of 231789168 is about 614.2771757653.

The spelling of 231789168 in words is "two hundred thirty-one million, seven hundred eighty-nine thousand, one hundred sixty-eight".