231383946 has 16 divisors (see below), whose sum is σ = 473530464. Its totient is φ = 75334224.

The previous prime is 231383921. The next prime is 231383947. The reversal of 231383946 is 649383132.

231383946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231383947) 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, 448161 + ... + 448676.

It is an arithmetic number, because the mean of its divisors is an integer number (29595654).

Almost surely, 2^231383946 is an apocalyptic number.

231383946 is an abundant number, since it is smaller than the sum of its proper divisors (242146518).

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

231383946 is a wasteful number, since it uses less digits than its factorization.

231383946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896885.

The product of its digits is 93312, while the sum is 39.

The square root of 231383946 is about 15211.3098055361. The cubic root of 231383946 is about 613.9189999497.

The spelling of 231383946 in words is "two hundred thirty-one million, three hundred eighty-three thousand, nine hundred forty-six".