13644968 has 16 divisors (see below), whose sum is σ = 26004660. Its totient is φ = 6710400.

The previous prime is 13644937. The next prime is 13644979. The reversal of 13644968 is 86944631.

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 2502724 = 3338^2 + 1582^2 .

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, 13493 + ... + 14468.

Almost surely, 2^13644968 is an apocalyptic number.

It is an amenable number.

13644968 is a deficient number, since it is larger than the sum of its proper divisors (12359692).

13644968 is a wasteful number, since it uses less digits than its factorization.

13644968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28028 (or 28024 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 13644968 is about 3693.9095820012. The cubic root of 13644968 is about 238.9594300984.

The spelling of 13644968 in words is "thirteen million, six hundred forty-four thousand, nine hundred sixty-eight".