238230155520 has 432 divisors, whose sum is σ = 997419346560. Its totient is φ = 51249217536.

The previous prime is 238230155519. The next prime is 238230155543. The reversal of 238230155520 is 25551032832.

238230155520 is a `hidden beast` number, since 2 + 3 + 82 + 3 + 0 + 1 + 55 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1283991 + ... + 1457769.

It is an arithmetic number, because the mean of its divisors is an integer number (2308841080).

Almost surely, 2^238230155520 is an apocalyptic number.

238230155520 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 238230155520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498709673280).

238230155520 is an abundant number, since it is smaller than the sum of its proper divisors (759189191040).

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

238230155520 is a wasteful number, since it uses less digits than its factorization.

238230155520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173830 (or 173813 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 238230155520 in words is "two hundred thirty-eight billion, two hundred thirty million, one hundred fifty-five thousand, five hundred twenty".