231951960 has 96 divisors (see below), whose sum is σ = 759507840. Its totient is φ = 61389312.

The previous prime is 231951931. The next prime is 231951971. The reversal of 231951960 is 69159132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46969 + ... + 51671.

It is an arithmetic number, because the mean of its divisors is an integer number (7911540).

Almost surely, 2^231951960 is an apocalyptic number.

231951960 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 231951960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379753920).

231951960 is an abundant number, since it is smaller than the sum of its proper divisors (527555880).

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

231951960 is a wasteful number, since it uses less digits than its factorization.

231951960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 231951960 is about 15229.9691398243. The cubic root of 231951960 is about 614.4209501116.

The spelling of 231951960 in words is "two hundred thirty-one million, nine hundred fifty-one thousand, nine hundred sixty".