238894157824 has 117 divisors (see below), whose sum is σ = 556236565851. Its totient is φ = 102289367040.

The previous prime is 238894157779. The next prime is 238894157837. The reversal of 238894157824 is 428751498832.

It is a happy number.

The square root of 238894157824 is 488768.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 218967519 + ... + 218968609.

Almost surely, 2^238894157824 is an apocalyptic number.

238894157824 is the 488768-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238894157824

238894157824 is an abundant number, since it is smaller than the sum of its proper divisors (317342408027).

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

238894157824 is an frugal number, since it uses more digits than its factorization.

238894157824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 1100 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 61.

The spelling of 238894157824 in words is "two hundred thirty-eight billion, eight hundred ninety-four million, one hundred fifty-seven thousand, eight hundred twenty-four".