238039579449 has 45 divisors (see below), whose sum is σ = 401237796453. Its totient is φ = 135981633816.

The previous prime is 238039579403. The next prime is 238039579501. The reversal of 238039579449 is 944975930832.

The square root of 238039579449 is 487893.

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

238039579449 is a `hidden beast` number, since 2 + 38 + 0 + 3 + 95 + 79 + 449 = 666.

It is not a de Polignac number, because 238039579449 - 2¹¹ = 238039577401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238039579549) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 71718612 + ... + 71721930.

Almost surely, 2^238039579449 is an apocalyptic number.

238039579449 is the 487893-rd square number.

238039579449 is the 243947-th centered octagonal number.

It is an amenable number.

238039579449 is a deficient number, since it is larger than the sum of its proper divisors (163198217004).

238039579449 is an frugal number, since it uses more digits than its factorization.

238039579449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672 (or 3329 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 238039579449 in words is "two hundred thirty-eight billion, thirty-nine million, five hundred seventy-nine thousand, four hundred forty-nine".