238419564 has 72 divisors (see below), whose sum is σ = 597558528. Its totient is φ = 73846080.

The previous prime is 238419557. The next prime is 238419569. The reversal of 238419564 is 465914832.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (238419569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377529 + ... + 378159.

It is an arithmetic number, because the mean of its divisors is an integer number (8299424).

Almost surely, 2^238419564 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 238419564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298779264).

238419564 is an abundant number, since it is smaller than the sum of its proper divisors (359138964).

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

238419564 is a wasteful number, since it uses less digits than its factorization.

238419564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 696 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 238419564 is about 15440.8407802166. The cubic root of 238419564 is about 620.0793897645.

The spelling of 238419564 in words is "two hundred thirty-eight million, four hundred nineteen thousand, five hundred sixty-four".