238489680 has 160 divisors (see below), whose sum is σ = 868694400. Its totient is φ = 53360640.

The previous prime is 238489673. The next prime is 238489681. The reversal of 238489680 is 86984832.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238489681) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 30846 + ... + 37794.

It is an arithmetic number, because the mean of its divisors is an integer number (5429340).

Almost surely, 2^238489680 is an apocalyptic number.

238489680 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 238489680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434347200).

238489680 is an abundant number, since it is smaller than the sum of its proper divisors (630204720).

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

238489680 is a wasteful number, since it uses less digits than its factorization.

238489680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989 (or 6983 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 238489680 is about 15443.1110855294. Note that the first 3 decimals coincide. The cubic root of 238489680 is about 620.1401694874.

The spelling of 238489680 in words is "two hundred thirty-eight million, four hundred eighty-nine thousand, six hundred eighty".