231406244 has 24 divisors (see below), whose sum is σ = 451352160. Its totient is φ = 103165056.

The previous prime is 231406213. The next prime is 231406249. The reversal of 231406244 is 442604132.

It is not an unprimeable number, because it can be changed into a prime (231406249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88262 + ... + 90845.

It is an arithmetic number, because the mean of its divisors is an integer number (18806340).

Almost surely, 2^231406244 is an apocalyptic number.

It is an amenable number.

231406244 is a deficient number, since it is larger than the sum of its proper divisors (219945916).

231406244 is a wasteful number, since it uses less digits than its factorization.

231406244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179147 (or 179145 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 231406244 is about 15212.0427293641. The cubic root of 231406244 is about 613.9387200245.

The spelling of 231406244 in words is "two hundred thirty-one million, four hundred six thousand, two hundred forty-four".