238868828 has 12 divisors (see below), whose sum is σ = 456022392. Its totient is φ = 108576720.

The previous prime is 238868821. The next prime is 238868831. The reversal of 238868828 is 828868832.

It is a self number, because there is not a number n which added to its sum of digits gives 238868828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238868821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714375 + ... + 2714462.

It is an arithmetic number, because the mean of its divisors is an integer number (38001866).

Almost surely, 2^238868828 is an apocalyptic number.

It is an amenable number.

238868828 is a deficient number, since it is larger than the sum of its proper divisors (217153564).

238868828 is a wasteful number, since it uses less digits than its factorization.

238868828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428852 (or 5428850 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 53.

The square root of 238868828 is about 15455.3818458167. The cubic root of 238868828 is about 620.4686259296.

The spelling of 238868828 in words is "two hundred thirty-eight million, eight hundred sixty-eight thousand, eight hundred twenty-eight".