231046428 has 24 divisors (see below), whose sum is σ = 544057360. Its totient is φ = 76308480.

The previous prime is 231046421. The next prime is 231046429. The reversal of 231046428 is 824640132.

It is a junction number, because it is equal to n+sod(n) for n = 231046395 and 231046404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231046421) 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, 87013 + ... + 89628.

Almost surely, 2^231046428 is an apocalyptic number.

It is an amenable number.

231046428 is an abundant number, since it is smaller than the sum of its proper divisors (313010932).

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

231046428 is a wasteful number, since it uses less digits than its factorization.

231046428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176757 (or 176755 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 231046428 is about 15200.2114458977. The cubic root of 231046428 is about 613.6203483657.

The spelling of 231046428 in words is "two hundred thirty-one million, forty-six thousand, four hundred twenty-eight".