231450400 has 72 divisors (see below), whose sum is σ = 594805680. Its totient is φ = 87701760.

The previous prime is 231450391. The next prime is 231450431. The reversal of 231450400 is 4054132.

231450400 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 (19).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7587 + ... + 22813.

It is an arithmetic number, because the mean of its divisors is an integer number (8261190).

Almost surely, 2^231450400 is an apocalyptic number.

231450400 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 231450400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297402840).

231450400 is an abundant number, since it is smaller than the sum of its proper divisors (363355280).

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

231450400 is a wasteful number, since it uses less digits than its factorization.

231450400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15266 (or 15253 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 231450400 is about 15213.4940102529. The cubic root of 231450400 is about 613.9777673057.

The spelling of 231450400 in words is "two hundred thirty-one million, four hundred fifty thousand, four hundred".