238481880 has 128 divisors (see below), whose sum is σ = 880588800. Its totient is φ = 50314752.

The previous prime is 238481869. The next prime is 238481911. The reversal of 238481880 is 88184832.

238481880 is a nontrivial binomial coefficient, being equal to C(21840, 2).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1 + ... + 21839.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^238481880 is an apocalyptic number.

238481880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

238481880 is the 21839-th triangular number and also the 10920-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238481880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440294400).

238481880 is an abundant number, since it is smaller than the sum of its proper divisors (642106920).

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

238481880 is a wasteful number, since it uses less digits than its factorization.

238481880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21873 (or 21869 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 238481880 is about 15442.8585436764. The cubic root of 238481880 is about 620.1334086833.

The spelling of 238481880 in words is "two hundred thirty-eight million, four hundred eighty-one thousand, eight hundred eighty".