231442596 has 120 divisors (see below), whose sum is σ = 754412736. Its totient is φ = 60108480.

The previous prime is 231442579. The next prime is 231442609. The reversal of 231442596 is 695244132.

It is a happy number.

231442596 is a `hidden beast` number, since 23 + 1 + 4 + 42 + 596 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231442596.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 20310 + ... + 29586.

Almost surely, 2^231442596 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 231442596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377206368).

231442596 is an abundant number, since it is smaller than the sum of its proper divisors (522970140).

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

231442596 is a wasteful number, since it uses less digits than its factorization.

231442596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311 (or 9300 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 231442596 is about 15213.2375252607. The cubic root of 231442596 is about 613.9708665668.

The spelling of 231442596 in words is "two hundred thirty-one million, four hundred forty-two thousand, five hundred ninety-six".