231608808 has 40 divisors (see below), whose sum is σ = 648720930. Its totient is φ = 77202720.

The previous prime is 231608801. The next prime is 231608831. The reversal of 231608808 is 808806132.

231608808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 213101604 + 18507204 = 14598^2 + 4302^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231608801) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 178063 + ... + 179358.

Almost surely, 2^231608808 is an apocalyptic number.

It is an amenable number.

231608808 is an abundant number, since it is smaller than the sum of its proper divisors (417112122).

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

231608808 is a wasteful number, since it uses less digits than its factorization.

231608808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357439 (or 357426 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 231608808 is about 15218.6992873898. The cubic root of 231608808 is about 614.1178071157.

The spelling of 231608808 in words is "two hundred thirty-one million, six hundred eight thousand, eight hundred eight".