231842328 has 32 divisors (see below), whose sum is σ = 613701360. Its totient is φ = 72734720.

The previous prime is 231842321. The next prime is 231842339. The reversal of 231842328 is 823248132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231842321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283713 + ... + 284528.

Almost surely, 2^231842328 is an apocalyptic number.

It is an amenable number.

231842328 is an abundant number, since it is smaller than the sum of its proper divisors (381859032).

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

231842328 is a wasteful number, since it uses less digits than its factorization.

231842328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568267 (or 568263 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 231842328 is about 15226.3694950569. The cubic root of 231842328 is about 614.3241329187.

The spelling of 231842328 in words is "two hundred thirty-one million, eight hundred forty-two thousand, three hundred twenty-eight".