231490224 has 400 divisors, whose sum is σ = 864230400. Its totient is φ = 58226688.

The previous prime is 231490213. The next prime is 231490247. The reversal of 231490224 is 422094132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2930217 + ... + 2930295.

It is an arithmetic number, because the mean of its divisors is an integer number (2160576).

Almost surely, 2^231490224 is an apocalyptic number.

231490224 is a gapful number since it is divisible by the number (24) 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 231490224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432115200).

231490224 is an abundant number, since it is smaller than the sum of its proper divisors (632740176).

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

231490224 is a wasteful number, since it uses less digits than its factorization.

231490224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 231490224 is about 15214.8027920180. The cubic root of 231490224 is about 614.0129795274.

The spelling of 231490224 in words is "two hundred thirty-one million, four hundred ninety thousand, two hundred twenty-four".