238490880 has 144 divisors (see below), whose sum is σ = 768216960. Its totient is φ = 63053824.

The previous prime is 238490873. The next prime is 238490899. The reversal of 238490880 is 88094832.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 664141 + ... + 664499.

It is an arithmetic number, because the mean of its divisors is an integer number (5334840).

Almost surely, 2^238490880 is an apocalyptic number.

238490880 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 238490880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384108480).

238490880 is an abundant number, since it is smaller than the sum of its proper divisors (529726080).

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

238490880 is a wasteful number, since it uses less digits than its factorization.

238490880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 238490880 is about 15443.1499377556. The cubic root of 238490880 is about 620.1412095981.

The spelling of 238490880 in words is "two hundred thirty-eight million, four hundred ninety thousand, eight hundred eighty".