231122790 has 24 divisors (see below), whose sum is σ = 600919488. Its totient is φ = 61632720.

The previous prime is 231122789. The next prime is 231122809. The reversal of 231122790 is 97221132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1283926 + ... + 1284105.

It is an arithmetic number, because the mean of its divisors is an integer number (25038312).

Almost surely, 2^231122790 is an apocalyptic number.

231122790 is an abundant number, since it is smaller than the sum of its proper divisors (369796698).

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

231122790 is a wasteful number, since it uses less digits than its factorization.

231122790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568044 (or 2568041 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 231122790 is about 15202.7231113377. The cubic root of 231122790 is about 613.6879424508.

The spelling of 231122790 in words is "two hundred thirty-one million, one hundred twenty-two thousand, seven hundred ninety".