231873560 has 64 divisors (see below), whose sum is σ = 551318400. Its totient is φ = 87625216.

The previous prime is 231873559. The next prime is 231873617. The reversal of 231873560 is 65378132.

It is a self number, because there is not a number n which added to its sum of digits gives 231873560.

It is a congruent number.

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, 52394 + ... + 56646.

It is an arithmetic number, because the mean of its divisors is an integer number (8614350).

Almost surely, 2^231873560 is an apocalyptic number.

231873560 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 231873560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275659200).

231873560 is an abundant number, since it is smaller than the sum of its proper divisors (319444840).

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

231873560 is a wasteful number, since it uses less digits than its factorization.

231873560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4336 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 231873560 is about 15227.3950497122. The cubic root of 231873560 is about 614.3517173407.

The spelling of 231873560 in words is "two hundred thirty-one million, eight hundred seventy-three thousand, five hundred sixty".