238989312 has 104 divisors (see below), whose sum is σ = 708357680. Its totient is φ = 79626240.

The previous prime is 238989307. The next prime is 238989329. The reversal of 238989312 is 213989832.

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

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 7 ways as a sum of consecutive naturals, for example, 109512 + ... + 111672.

Almost surely, 2^238989312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238989312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354178840).

238989312 is an abundant number, since it is smaller than the sum of its proper divisors (469368368).

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

238989312 is an equidigital number, since it uses as much as digits as its factorization.

238989312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2166 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 238989312 is about 15459.2791552517. The cubic root of 238989312 is about 620.5729286092.

The spelling of 238989312 in words is "two hundred thirty-eight million, nine hundred eighty-nine thousand, three hundred twelve".