231088998 has 24 divisors (see below), whose sum is σ = 537636312. Its totient is φ = 66025344.

The previous prime is 231088993. The next prime is 231088999. The reversal of 231088998 is 899880132.

It is a happy number.

231088998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231088993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392715 + ... + 393302.

It is an arithmetic number, because the mean of its divisors is an integer number (22401513).

Almost surely, 2^231088998 is an apocalyptic number.

231088998 is an abundant number, since it is smaller than the sum of its proper divisors (306547314).

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

231088998 is a wasteful number, since it uses less digits than its factorization.

231088998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786036 (or 786029 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 231088998 is about 15201.6116908701. The cubic root of 231088998 is about 613.6580322983.

The spelling of 231088998 in words is "two hundred thirty-one million, eighty-eight thousand, nine hundred ninety-eight".