230308907688 has 160 divisors (see below), whose sum is σ = 667946644200. Its totient is φ = 74053066752.

The previous prime is 230308907677. The next prime is 230308907713. The reversal of 230308907688 is 886709803032.

It can be written as a sum of positive squares in 4 ways, for example, as 173503905444 + 56805002244 = 416538^2 + 238338^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22413720 + ... + 22423992.

Almost surely, 2^230308907688 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 230308907688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333973322100).

230308907688 is an abundant number, since it is smaller than the sum of its proper divisors (437637736512).

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

230308907688 is a wasteful number, since it uses less digits than its factorization.

230308907688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11513 (or 11500 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 230308907688 in words is "two hundred thirty billion, three hundred eight million, nine hundred seven thousand, six hundred eighty-eight".