238204515844 has 27 divisors (see below), whose sum is σ = 422338101717. Its totient is φ = 117556565568.

The previous prime is 238204515781. The next prime is 238204515847. The reversal of 238204515844 is 448515402832.

The square root of 238204515844 is 488062.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 218872394244 + 19332121600 = 467838^2 + 139040^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238204515794 and 238204515803.

It is not an unprimeable number, because it can be changed into a prime (238204515847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 77112252 + ... + 77115340.

Almost surely, 2^238204515844 is an apocalyptic number.

238204515844 is the 488062-nd square number.

It is an amenable number.

238204515844 is a deficient number, since it is larger than the sum of its proper divisors (184133585873).

238204515844 is an frugal number, since it uses more digits than its factorization.

238204515844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 46.

The spelling of 238204515844 in words is "two hundred thirty-eight billion, two hundred four million, five hundred fifteen thousand, eight hundred forty-four".