338221568 has 20 divisors (see below), whose sum is σ = 675783570. Its totient is φ = 169110528.

The previous prime is 338221553. The next prime is 338221607. The reversal of 338221568 is 865122833.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 141324544 = 14032^2 + 11888^2 .

It is a super-2 number, since 2×338221568² = 228787658120757248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329783 + ... + 330806.

Almost surely, 2^338221568 is an apocalyptic number.

It is an amenable number.

338221568 is a deficient number, since it is larger than the sum of its proper divisors (337562002).

338221568 is an frugal number, since it uses more digits than its factorization.

338221568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660607 (or 660591 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 338221568 is about 18390.8011788503. The cubic root of 338221568 is about 696.7341528859.

The spelling of 338221568 in words is "three hundred thirty-eight million, two hundred twenty-one thousand, five hundred sixty-eight".