230284989 has 24 divisors (see below), whose sum is σ = 364728000. Its totient is φ = 138853440.

The previous prime is 230284981. The next prime is 230284991. The reversal of 230284989 is 989482032.

It is not a de Polignac number, because 230284989 - 2³ = 230284981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230284981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13857 + ... + 25545.

It is an arithmetic number, because the mean of its divisors is an integer number (15197000).

Almost surely, 2^230284989 is an apocalyptic number.

It is an amenable number.

230284989 is a deficient number, since it is larger than the sum of its proper divisors (134443011).

230284989 is a wasteful number, since it uses less digits than its factorization.

230284989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11905 (or 11902 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 230284989 is about 15175.1437884456. The cubic root of 230284989 is about 612.9455219761.

The spelling of 230284989 in words is "two hundred thirty million, two hundred eighty-four thousand, nine hundred eighty-nine".