230857520 has 20 divisors (see below), whose sum is σ = 536743920. Its totient is φ = 92342976.

The previous prime is 230857519. The next prime is 230857537. The reversal of 230857520 is 25758032.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1442780 + ... + 1442939.

It is an arithmetic number, because the mean of its divisors is an integer number (26837196).

Almost surely, 2^230857520 is an apocalyptic number.

230857520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230857520 is an abundant number, since it is smaller than the sum of its proper divisors (305886400).

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

230857520 is a wasteful number, since it uses less digits than its factorization.

230857520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885732 (or 2885726 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 230857520 is about 15193.9961827032. The cubic root of 230857520 is about 613.4530668365.

The spelling of 230857520 in words is "two hundred thirty million, eight hundred fifty-seven thousand, five hundred twenty".