231746880 has 112 divisors (see below), whose sum is σ = 740810304. Its totient is φ = 61378560.

The previous prime is 231746863. The next prime is 231746881. The reversal of 231746880 is 88647132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231746881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155740 + ... + 157220.

Almost surely, 2^231746880 is an apocalyptic number.

231746880 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 231746880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370405152).

231746880 is an abundant number, since it is smaller than the sum of its proper divisors (509063424).

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

231746880 is a wasteful number, since it uses less digits than its factorization.

231746880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 231746880 is about 15223.2348730485. The cubic root of 231746880 is about 614.2398169113.

The spelling of 231746880 in words is "two hundred thirty-one million, seven hundred forty-six thousand, eight hundred eighty".