338394668089 has 9 divisors (see below), whose sum is σ = 339314527461. Its totient is φ = 337477300380.

The previous prime is 338394668083. The next prime is 338394668107. The reversal of 338394668089 is 980866493833.

It is a happy number.

The square root of 338394668089 is 581717.

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

It is a de Polignac number, because none of the positive numbers 2^k-338394668089 is a prime.

It is a super-2 number, since 2×338394668089² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338394668083) 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, 341467384 + ... + 341468374.

Almost surely, 2^338394668089 is an apocalyptic number.

338394668089 is the 581717-th square number.

338394668089 is the 290859-th centered octagonal number.

It is an amenable number.

338394668089 is a deficient number, since it is larger than the sum of its proper divisors (919859372).

338394668089 is an frugal number, since it uses more digits than its factorization.

338394668089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 67.

The spelling of 338394668089 in words is "three hundred thirty-eight billion, three hundred ninety-four million, six hundred sixty-eight thousand, eighty-nine".