231304896 has 168 divisors, whose sum is σ = 698967360. Its totient is φ = 75831552.

The previous prime is 231304891. The next prime is 231304897. The reversal of 231304896 is 698403132.

231304896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231304896.

It is not an unprimeable number, because it can be changed into a prime (231304891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1663995 + ... + 1664133.

It is an arithmetic number, because the mean of its divisors is an integer number (4160520).

Almost surely, 2^231304896 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 231304896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349483680).

231304896 is an abundant number, since it is smaller than the sum of its proper divisors (467662464).

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

231304896 is a wasteful number, since it uses less digits than its factorization.

231304896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 231304896 is about 15208.7111880001. The cubic root of 231304896 is about 613.8490789008.

The spelling of 231304896 in words is "two hundred thirty-one million, three hundred four thousand, eight hundred ninety-six".