231422044 has 96 divisors (see below), whose sum is σ = 505967616. Its totient is φ = 90478080.

The previous prime is 231422039. The next prime is 231422063. The reversal of 231422044 is 440224132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1689144 + ... + 1689280.

It is an arithmetic number, because the mean of its divisors is an integer number (5270496).

Almost surely, 2^231422044 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 231422044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252983808).

231422044 is an abundant number, since it is smaller than the sum of its proper divisors (274545572).

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

231422044 is a wasteful number, since it uses less digits than its factorization.

231422044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 231422044 is about 15212.5620458883. The cubic root of 231422044 is about 613.9526925818.

Adding to 231422044 its reverse (440224132), we get a palindrome (671646176).

The spelling of 231422044 in words is "two hundred thirty-one million, four hundred twenty-two thousand, forty-four".