13378336 has 12 divisors (see below), whose sum is σ = 26338662. Its totient is φ = 6689152.

The previous prime is 13378327. The next prime is 13378357. The reversal of 13378336 is 63387331.

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 5290000 = 2844^2 + 2300^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209005 + ... + 209068.

Almost surely, 2^13378336 is an apocalyptic number.

13378336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13378336 is a deficient number, since it is larger than the sum of its proper divisors (12960326).

13378336 is an equidigital number, since it uses as much as digits as its factorization.

13378336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418083 (or 418075 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 13378336 is about 3657.6407696765. The cubic root of 13378336 is about 237.3927035187.

The spelling of 13378336 in words is "thirteen million, three hundred seventy-eight thousand, three hundred thirty-six".