231983360 has 144 divisors (see below), whose sum is σ = 672852096. Its totient is φ = 74809344.

The previous prime is 231983347. The next prime is 231983387. The reversal of 231983360 is 63389132.

It is a Cunningham number, because it is equal to 15231²-1.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 231983360.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151559 + ... + 153081.

It is an arithmetic number, because the mean of its divisors is an integer number (4672584).

Almost surely, 2^231983360 is an apocalyptic number.

231983360 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 231983360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336426048).

231983360 is an abundant number, since it is smaller than the sum of its proper divisors (440868736).

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

231983360 is a wasteful number, since it uses less digits than its factorization.

231983360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 231983360 is about 15230.9999671722. Note that the first 4 decimals coincide. The cubic root of 231983360 is about 614.4486741675.

The spelling of 231983360 in words is "two hundred thirty-one million, nine hundred eighty-three thousand, three hundred sixty".