238655284 has 48 divisors (see below), whose sum is σ = 497548800. Its totient is φ = 100077600.

The previous prime is 238655281. The next prime is 238655321. The reversal of 238655284 is 482556832.

It is a super-2 number, since 2×238655284² = 113912689162241312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238655284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238655281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62634 + ... + 66334.

It is an arithmetic number, because the mean of its divisors is an integer number (10365600).

Almost surely, 2^238655284 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 238655284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248774400).

238655284 is an abundant number, since it is smaller than the sum of its proper divisors (258893516).

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

238655284 is a wasteful number, since it uses less digits than its factorization.

238655284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773 (or 3757 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 238655284 is about 15448.4718985406. The cubic root of 238655284 is about 620.2836752514.

The spelling of 238655284 in words is "two hundred thirty-eight million, six hundred fifty-five thousand, two hundred eighty-four".