231330408 has 16 divisors (see below), whose sum is σ = 578326080. Its totient is φ = 77110128.

The previous prime is 231330383. The next prime is 231330409. The reversal of 231330408 is 804033132.

231330408 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 (24), and also a Moran number because the ratio is a prime number: 9638767 = 231330408 / (2 + 3 + 1 + 3 + 3 + 0 + 4 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (231330409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4819360 + ... + 4819407.

It is an arithmetic number, because the mean of its divisors is an integer number (36145380).

Almost surely, 2^231330408 is an apocalyptic number.

It is an amenable number.

231330408 is an abundant number, since it is smaller than the sum of its proper divisors (346995672).

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

231330408 is a wasteful number, since it uses less digits than its factorization.

231330408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638776 (or 9638772 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 231330408 is about 15209.5498947208. The cubic root of 231330408 is about 613.8716464329.

The spelling of 231330408 in words is "two hundred thirty-one million, three hundred thirty thousand, four hundred eight".