13380244 has 12 divisors (see below), whose sum is σ = 23546068. Its totient is φ = 6652800.

The previous prime is 13380239. The next prime is 13380299. The reversal of 13380244 is 44208331.

It can be written as a sum of positive squares in 2 ways, for example, as 5817744 + 7562500 = 2412^2 + 2750^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8517 + ... + 9964.

Almost surely, 2^13380244 is an apocalyptic number.

It is an amenable number.

13380244 is a deficient number, since it is larger than the sum of its proper divisors (10165824).

13380244 is a wasteful number, since it uses less digits than its factorization.

13380244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18666 (or 18664 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 13380244 is about 3657.9015842420. The cubic root of 13380244 is about 237.4039885232.

Adding to 13380244 its reverse (44208331), we get a palindrome (57588575).

The spelling of 13380244 in words is "thirteen million, three hundred eighty thousand, two hundred forty-four".