231913746 has 16 divisors (see below), whose sum is σ = 515364000. Its totient is φ = 77304564.

The previous prime is 231913739. The next prime is 231913757. The reversal of 231913746 is 647319132.

231913746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231913746.

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, 2147296 + ... + 2147403.

It is an arithmetic number, because the mean of its divisors is an integer number (32210250).

Almost surely, 2^231913746 is an apocalyptic number.

231913746 is an abundant number, since it is smaller than the sum of its proper divisors (283450254).

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

231913746 is a wasteful number, since it uses less digits than its factorization.

231913746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294710 (or 4294704 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 231913746 is about 15228.7145222438. The cubic root of 231913746 is about 614.3872063834.

The spelling of 231913746 in words is "two hundred thirty-one million, nine hundred thirteen thousand, seven hundred forty-six".