1338073218 has 12 divisors (see below), whose sum is σ = 2899158678. Its totient is φ = 446024400.

The previous prime is 1338073207. The next prime is 1338073223. The reversal of 1338073218 is 8123708331.

It can be written as a sum of positive squares in only one way, i.e., 1165334769 + 172738449 = 34137^2 + 13143^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37168683 + ... + 37168718.

Almost surely, 2^1338073218 is an apocalyptic number.

1338073218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1338073218 is an abundant number, since it is smaller than the sum of its proper divisors (1561085460).

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

1338073218 is a wasteful number, since it uses less digits than its factorization.

1338073218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74337409 (or 74337406 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1338073218 is about 36579.6831314871. The cubic root of 1338073218 is about 1101.9451033970.

The spelling of 1338073218 in words is "one billion, three hundred thirty-eight million, seventy-three thousand, two hundred eighteen".