231360 has 56 divisors (see below), whose sum is σ = 737616. Its totient is φ = 61440.

The previous prime is 231359. The next prime is 231367. The reversal of 231360 is 63132.

231360 = T₅₁ + T₅₂ + ... + T₁₁₄.

It is a Cunningham number, because it is equal to 481²-1.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840 + ... + 1080.

2²³¹³⁶⁰ is an apocalyptic number.

231360 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 231360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368808).

231360 is an abundant number, since it is smaller than the sum of its proper divisors (506256).

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

231360 is a wasteful number, since it uses less digits than its factorization.

231360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231360 is about 480.9989604978. The cubic root of 231360 is about 61.3897820993.

Adding to 231360 its reverse (63132), we get a palindrome (294492).

The spelling of 231360 in words is "two hundred thirty-one thousand, three hundred sixty".