238839804 has 144 divisors (see below), whose sum is σ = 736270080. Its totient is φ = 63763200.

The previous prime is 238839787. The next prime is 238839859. The reversal of 238839804 is 408938832.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 238839804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397104 + ... + 397704.

Almost surely, 2^238839804 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 238839804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368135040).

238839804 is an abundant number, since it is smaller than the sum of its proper divisors (497430276).

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

238839804 is a wasteful number, since it uses less digits than its factorization.

238839804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 238839804 is about 15454.4428563439. The cubic root of 238839804 is about 620.4434946878.

The spelling of 238839804 in words is "two hundred thirty-eight million, eight hundred thirty-nine thousand, eight hundred four".