13378244 has 36 divisors (see below), whose sum is σ = 26053104. Its totient is φ = 6006000.

The previous prime is 13378243. The next prime is 13378247. The reversal of 13378244 is 44287331.

It is a self number, because there is not a number n which added to its sum of digits gives 13378244.

It is not an unprimeable number, because it can be changed into a prime (13378241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63299 + ... + 63509.

Almost surely, 2^13378244 is an apocalyptic number.

It is an amenable number.

13378244 is a deficient number, since it is larger than the sum of its proper divisors (12674860).

13378244 is a wasteful number, since it uses less digits than its factorization.

13378244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 355 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 13378244 is about 3657.6281932422. The cubic root of 13378244 is about 237.3921593509.

The spelling of 13378244 in words is "thirteen million, three hundred seventy-eight thousand, two hundred forty-four".