231298644 has 24 divisors (see below), whose sum is σ = 548845920. Its totient is φ = 75792544.

The previous prime is 231298637. The next prime is 231298681. The reversal of 231298644 is 446892132.

231298644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 162639 + ... + 164054.

It is an arithmetic number, because the mean of its divisors is an integer number (22868580).

Almost surely, 2^231298644 is an apocalyptic number.

It is an amenable number.

231298644 is an abundant number, since it is smaller than the sum of its proper divisors (317547276).

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

231298644 is a wasteful number, since it uses less digits than its factorization.

231298644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326759 (or 326757 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 231298644 is about 15208.5056465124. The cubic root of 231298644 is about 613.8435482224.

The spelling of 231298644 in words is "two hundred thirty-one million, two hundred ninety-eight thousand, six hundred forty-four".