238243764 has 48 divisors (see below), whose sum is σ = 609186816. Its totient is φ = 71868000.

The previous prime is 238243751. The next prime is 238243769. The reversal of 238243764 is 467342832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238243769) 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, 25989 + ... + 33939.

It is an arithmetic number, because the mean of its divisors is an integer number (12691392).

Almost surely, 2^238243764 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 238243764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304593408).

238243764 is an abundant number, since it is smaller than the sum of its proper divisors (370943052).

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

238243764 is a wasteful number, since it uses less digits than its factorization.

238243764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196 (or 8194 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 238243764 is about 15435.1470352569. The cubic root of 238243764 is about 619.9269459537.

The spelling of 238243764 in words is "two hundred thirty-eight million, two hundred forty-three thousand, seven hundred sixty-four".