238938984 has 96 divisors (see below), whose sum is σ = 706524000. Its totient is φ = 75442752.

The previous prime is 238938977. The next prime is 238939031. The reversal of 238938984 is 489839832.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 238938984.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33702 + ... + 40170.

It is an arithmetic number, because the mean of its divisors is an integer number (7359625).

Almost surely, 2^238938984 is an apocalyptic number.

238938984 is a gapful number since it is divisible by the number (24) 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 238938984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353262000).

238938984 is an abundant number, since it is smaller than the sum of its proper divisors (467585016).

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

238938984 is a wasteful number, since it uses less digits than its factorization.

238938984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509 (or 6493 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 238938984 is about 15457.6513093031. The cubic root of 238938984 is about 620.5293640572.

The spelling of 238938984 in words is "two hundred thirty-eight million, nine hundred thirty-eight thousand, nine hundred eighty-four".