231257260 has 48 divisors (see below), whose sum is σ = 526024800. Its totient is φ = 84893184.

The previous prime is 231257209. The next prime is 231257297. The reversal of 231257260 is 62752132.

231257260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 44056 + ... + 49024.

It is an arithmetic number, because the mean of its divisors is an integer number (10958850).

Almost surely, 2^231257260 is an apocalyptic number.

231257260 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 231257260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263012400).

231257260 is an abundant number, since it is smaller than the sum of its proper divisors (294767540).

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

231257260 is a wasteful number, since it uses less digits than its factorization.

231257260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170 (or 5168 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 231257260 is about 15207.1450312016. The cubic root of 231257260 is about 613.8069363683.

The spelling of 231257260 in words is "two hundred thirty-one million, two hundred fifty-seven thousand, two hundred sixty".