238859388 has 48 divisors (see below), whose sum is σ = 622056960. Its totient is φ = 79260912.

The previous prime is 238859359. The next prime is 238859389. The reversal of 238859388 is 883958832.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238859389) 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, 19645 + ... + 29387.

It is an arithmetic number, because the mean of its divisors is an integer number (12959520).

Almost surely, 2^238859388 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 238859388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311028480).

238859388 is an abundant number, since it is smaller than the sum of its proper divisors (383197572).

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

238859388 is a wasteful number, since it uses less digits than its factorization.

238859388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983 (or 9975 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 238859388 is about 15455.0764475625. The cubic root of 238859388 is about 620.4604522651.

It can be divided in two parts, 2388 and 59388, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 238859388 in words is "two hundred thirty-eight million, eight hundred fifty-nine thousand, three hundred eighty-eight".