238303520 has 144 divisors (see below), whose sum is σ = 697273920. Its totient is φ = 75359232.

The previous prime is 238303493. The next prime is 238303577. The reversal of 238303520 is 25303832.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 238303520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188651 + ... + 189909.

It is an arithmetic number, because the mean of its divisors is an integer number (4842180).

Almost surely, 2^238303520 is an apocalyptic number.

238303520 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 238303520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348636960).

238303520 is an abundant number, since it is smaller than the sum of its proper divisors (458970400).

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

238303520 is a wasteful number, since it uses less digits than its factorization.

238303520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1286 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 238303520 is about 15437.0826259368. The cubic root of 238303520 is about 619.9787713855.

The spelling of 238303520 in words is "two hundred thirty-eight million, three hundred three thousand, five hundred twenty".