231633028 has 24 divisors (see below), whose sum is σ = 465484320. Its totient is φ = 99745920.

The previous prime is 231633001. The next prime is 231633029. The reversal of 231633028 is 820336132.

It is a junction number, because it is equal to n+sod(n) for n = 231632987 and 231633005.

It is not an unprimeable number, because it can be changed into a prime (231633029) 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, 137701 + ... + 139372.

It is an arithmetic number, because the mean of its divisors is an integer number (19395180).

Almost surely, 2^231633028 is an apocalyptic number.

It is an amenable number.

231633028 is an abundant number, since it is smaller than the sum of its proper divisors (233851292).

231633028 is a wasteful number, since it uses less digits than its factorization.

231633028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277107 (or 277105 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 231633028 is about 15219.4949981923. The cubic root of 231633028 is about 614.1392130587.

It can be divided in two parts, 2316 and 33028, that added together give a square (35344 = 188²).

The spelling of 231633028 in words is "two hundred thirty-one million, six hundred thirty-three thousand, twenty-eight".