238861216 has 72 divisors (see below), whose sum is σ = 526647744. Its totient is φ = 105759360.

The previous prime is 238861199. The next prime is 238861229. The reversal of 238861216 is 612168832.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650665 + ... + 651031.

It is an arithmetic number, because the mean of its divisors is an integer number (7314552).

Almost surely, 2^238861216 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 238861216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263323872).

238861216 is an abundant number, since it is smaller than the sum of its proper divisors (287786528).

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

238861216 is a wasteful number, since it uses less digits than its factorization.

238861216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 423 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 238861216 is about 15455.1355865939. The cubic root of 238861216 is about 620.4620350635.

The spelling of 238861216 in words is "two hundred thirty-eight million, eight hundred sixty-one thousand, two hundred sixteen".