231704408 has 32 divisors (see below), whose sum is σ = 470668800. Its totient is φ = 106932384.

The previous prime is 231704399. The next prime is 231704419. The reversal of 231704408 is 804407132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10985 + ... + 24167.

It is an arithmetic number, because the mean of its divisors is an integer number (14708400).

Almost surely, 2^231704408 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 231704408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235334400).

231704408 is an abundant number, since it is smaller than the sum of its proper divisors (238964392).

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

231704408 is a wasteful number, since it uses less digits than its factorization.

231704408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13228 (or 13198 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 231704408 is about 15221.8398362353. The cubic root of 231704408 is about 614.2022909298.

The spelling of 231704408 in words is "two hundred thirty-one million, seven hundred four thousand, four hundred eight".