231359428 has 24 divisors (see below), whose sum is σ = 427079520. Its totient is φ = 109362240.

The previous prime is 231359423. The next prime is 231359437. The reversal of 231359428 is 824953132.

It is not an unprimeable number, because it can be changed into a prime (231359423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36675 + ... + 42517.

It is an arithmetic number, because the mean of its divisors is an integer number (17794980).

Almost surely, 2^231359428 is an apocalyptic number.

It is an amenable number.

231359428 is a deficient number, since it is larger than the sum of its proper divisors (195720092).

231359428 is a wasteful number, since it uses less digits than its factorization.

231359428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387 (or 6385 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 231359428 is about 15210.5038706809. The cubic root of 231359428 is about 613.8973150720.

The spelling of 231359428 in words is "two hundred thirty-one million, three hundred fifty-nine thousand, four hundred twenty-eight".