231322938 has 32 divisors (see below), whose sum is σ = 576806400. Its totient is φ = 60083760.

The previous prime is 231322933. The next prime is 231322939. The reversal of 231322938 is 839223132.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 231322899 and 231322908.

It is not an unprimeable number, because it can be changed into a prime (231322933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249888 + ... + 250811.

It is an arithmetic number, because the mean of its divisors is an integer number (18025200).

Almost surely, 2^231322938 is an apocalyptic number.

231322938 is an abundant number, since it is smaller than the sum of its proper divisors (345483462).

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

231322938 is a wasteful number, since it uses less digits than its factorization.

231322938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500722.

The product of its digits is 15552, while the sum is 33.

The square root of 231322938 is about 15209.3043233410. The cubic root of 231322938 is about 613.8650387549.

The spelling of 231322938 in words is "two hundred thirty-one million, three hundred twenty-two thousand, nine hundred thirty-eight".