230922990 has 96 divisors (see below), whose sum is σ = 630317376. Its totient is φ = 58544640.

The previous prime is 230922971. The next prime is 230922997. The reversal of 230922990 is 99229032.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230922997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 581472 + ... + 581868.

It is an arithmetic number, because the mean of its divisors is an integer number (6565806).

Almost surely, 2^230922990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230922990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315158688).

230922990 is an abundant number, since it is smaller than the sum of its proper divisors (399394386).

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

230922990 is a wasteful number, since it uses less digits than its factorization.

230922990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 230922990 is about 15196.1504993863. The cubic root of 230922990 is about 613.5110520623.

The spelling of 230922990 in words is "two hundred thirty million, nine hundred twenty-two thousand, nine hundred ninety".