231421876 has 48 divisors (see below), whose sum is σ = 476985600. Its totient is φ = 96180480.

The previous prime is 231421859. The next prime is 231421877. The reversal of 231421876 is 678124132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231421877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227946 + ... + 228958.

It is an arithmetic number, because the mean of its divisors is an integer number (9937200).

Almost surely, 2^231421876 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 231421876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238492800).

231421876 is an abundant number, since it is smaller than the sum of its proper divisors (245563724).

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

231421876 is a wasteful number, since it uses less digits than its factorization.

231421876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1262 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 231421876 is about 15212.5565241349. The cubic root of 231421876 is about 613.9525440162.

The spelling of 231421876 in words is "two hundred thirty-one million, four hundred twenty-one thousand, eight hundred seventy-six".