230018538 has 32 divisors (see below), whose sum is σ = 481107456. Its totient is φ = 73176048.

The previous prime is 230018513. The next prime is 230018539. The reversal of 230018538 is 835810032.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230018539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70581 + ... + 73767.

It is an arithmetic number, because the mean of its divisors is an integer number (15034608).

Almost surely, 2^230018538 is an apocalyptic number.

230018538 is an abundant number, since it is smaller than the sum of its proper divisors (251088918).

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

230018538 is a wasteful number, since it uses less digits than its factorization.

230018538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 230018538 is about 15166.3620555491. The cubic root of 230018538 is about 612.7090280876.

The spelling of 230018538 in words is "two hundred thirty million, eighteen thousand, five hundred thirty-eight".