1338133394 has 32 divisors (see below), whose sum is σ = 2181344256. Its totient is φ = 611988480.

The previous prime is 1338133373. The next prime is 1338133417. The reversal of 1338133394 is 4933318331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318834 + ... + 2319410.

It is an arithmetic number, because the mean of its divisors is an integer number (68167008).

Almost surely, 2^1338133394 is an apocalyptic number.

1338133394 is a deficient number, since it is larger than the sum of its proper divisors (843210862).

1338133394 is a wasteful number, since it uses less digits than its factorization.

1338133394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its digits is 69984, while the sum is 38.

The square root of 1338133394 is about 36580.5056553351. The cubic root of 1338133394 is about 1101.9616220881.

The spelling of 1338133394 in words is "one billion, three hundred thirty-eight million, one hundred thirty-three thousand, three hundred ninety-four".