231937090 has 96 divisors (see below), whose sum is σ = 544584384. Its totient is φ = 70277760.

The previous prime is 231937081. The next prime is 231937091. The reversal of 231937090 is 90739132.

It is not an unprimeable number, because it can be changed into a prime (231937091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198849 + ... + 200011.

It is an arithmetic number, because the mean of its divisors is an integer number (5672754).

Almost surely, 2^231937090 is an apocalyptic number.

231937090 is an abundant number, since it is smaller than the sum of its proper divisors (312647294).

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

231937090 is a wasteful number, since it uses less digits than its factorization.

231937090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 231937090 is about 15229.4809497895. The cubic root of 231937090 is about 614.4078200440.

The spelling of 231937090 in words is "two hundred thirty-one million, nine hundred thirty-seven thousand, ninety".