231868980 has 360 divisors, whose sum is σ = 889878528. Its totient is φ = 50295168.

The previous prime is 231868961. The next prime is 231868993. The reversal of 231868980 is 89868132.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1825677 + ... + 1825803.

Almost surely, 2^231868980 is an apocalyptic number.

231868980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231868980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444939264).

231868980 is an abundant number, since it is smaller than the sum of its proper divisors (658009548).

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

231868980 is a wasteful number, since it uses less digits than its factorization.

231868980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 231868980 is about 15227.2446621180. The cubic root of 231868980 is about 614.3476723928.

The spelling of 231868980 in words is "two hundred thirty-one million, eight hundred sixty-eight thousand, nine hundred eighty".