238397402880 has 2160 divisors, whose sum is σ = 1131537224160. Its totient is φ = 47340453888.

The previous prime is 238397402857. The next prime is 238397402891. The reversal of 238397402880 is 88204793832.

238397402880 is a `hidden beast` number, since 238 + 3 + 97 + 40 + 288 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 14023376632 + ... + 14023376648.

It is an arithmetic number, because the mean of its divisors is an integer number (523859826).

Almost surely, 2^238397402880 is an apocalyptic number.

238397402880 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 238397402880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565768612080).

238397402880 is an abundant number, since it is smaller than the sum of its proper divisors (893139821280).

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

238397402880 is an equidigital number, since it uses as much as digits as its factorization.

238397402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 238397402880 in words is "two hundred thirty-eight billion, three hundred ninety-seven million, four hundred two thousand, eight hundred eighty".