238585520 has 40 divisors (see below), whose sum is σ = 557843760. Its totient is φ = 94895360.

The previous prime is 238585513. The next prime is 238585547. The reversal of 238585520 is 25585832.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5990 + ... + 22650.

It is an arithmetic number, because the mean of its divisors is an integer number (13946094).

Almost surely, 2^238585520 is an apocalyptic number.

238585520 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 238585520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278921880).

238585520 is an abundant number, since it is smaller than the sum of its proper divisors (319258240).

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

238585520 is a wasteful number, since it uses less digits than its factorization.

238585520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16853 (or 16847 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 238585520 is about 15446.2137755503. The cubic root of 238585520 is about 620.2232286708.

The spelling of 238585520 in words is "two hundred thirty-eight million, five hundred eighty-five thousand, five hundred twenty".