231895488 has 112 divisors (see below), whose sum is σ = 681045120. Its totient is φ = 69043200.

The previous prime is 231895481. The next prime is 231895519. The reversal of 231895488 is 884598132.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231895481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123678 + ... + 125538.

It is an arithmetic number, because the mean of its divisors is an integer number (6080760).

Almost surely, 2^231895488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231895488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340522560).

231895488 is an abundant number, since it is smaller than the sum of its proper divisors (449149632).

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

231895488 is a wasteful number, since it uses less digits than its factorization.

231895488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946 (or 1936 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 231895488 is about 15228.1150507868. The cubic root of 231895488 is about 614.3710828947.

The spelling of 231895488 in words is "two hundred thirty-one million, eight hundred ninety-five thousand, four hundred eighty-eight".