230995640 has 64 divisors (see below), whose sum is σ = 539148960. Its totient is φ = 89006080.

The previous prime is 230995631. The next prime is 230995657. The reversal of 230995640 is 46599032.

230995640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 230995594 and 230995603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135272 + ... + 136968.

Almost surely, 2^230995640 is an apocalyptic number.

230995640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230995640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269574480).

230995640 is an abundant number, since it is smaller than the sum of its proper divisors (308153320).

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

230995640 is a wasteful number, since it uses less digits than its factorization.

230995640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 230995640 is about 15198.5407194243. The cubic root of 230995640 is about 613.5753836165.

The spelling of 230995640 in words is "two hundred thirty million, nine hundred ninety-five thousand, six hundred forty".