230565990 has 32 divisors (see below), whose sum is σ = 554623200. Its totient is φ = 61343744.

The previous prime is 230565989. The next prime is 230565997. The reversal of 230565990 is 99565032.

230565990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230565997) 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, 4912 + ... + 22028.

It is an arithmetic number, because the mean of its divisors is an integer number (17331975).

Almost surely, 2^230565990 is an apocalyptic number.

230565990 is an abundant number, since it is smaller than the sum of its proper divisors (324057210).

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

230565990 is a wasteful number, since it uses less digits than its factorization.

230565990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576.

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 230565990 is about 15184.3995600748. The cubic root of 230565990 is about 613.1947324521.

The spelling of 230565990 in words is "two hundred thirty million, five hundred sixty-five thousand, nine hundred ninety".