230393988 has 72 divisors (see below), whose sum is σ = 639702336. Its totient is φ = 69336000.

The previous prime is 230393987. The next prime is 230394007. The reversal of 230393988 is 889393032.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (230393987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57870 + ... + 61722.

Almost surely, 2^230393988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230393988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319851168).

230393988 is an abundant number, since it is smaller than the sum of its proper divisors (409308348).

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

230393988 is a wasteful number, since it uses less digits than its factorization.

230393988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 230393988 is about 15178.7347298778. The cubic root of 230393988 is about 613.0422136320.

The spelling of 230393988 in words is "two hundred thirty million, three hundred ninety-three thousand, nine hundred eighty-eight".