231394984 has 16 divisors (see below), whose sum is σ = 435158100. Its totient is φ = 115352832.

The previous prime is 231394981. The next prime is 231394993. The reversal of 231394984 is 489493132.

It can be written as a sum of positive squares in 2 ways, for example, as 190716100 + 40678884 = 13810^2 + 6378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231394984.

It is not an unprimeable number, because it can be changed into a prime (231394981) 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, 40219 + ... + 45610.

Almost surely, 2^231394984 is an apocalyptic number.

It is an amenable number.

231394984 is a deficient number, since it is larger than the sum of its proper divisors (203763116).

231394984 is a wasteful number, since it uses less digits than its factorization.

231394984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86172 (or 86168 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 231394984 is about 15211.6726233508. The cubic root of 231394984 is about 613.9287619784.

The spelling of 231394984 in words is "two hundred thirty-one million, three hundred ninety-four thousand, nine hundred eighty-four".