13644838 has 8 divisors (see below), whose sum is σ = 20655360. Its totient is φ = 6759720.

The previous prime is 13644821. The next prime is 13644847. The reversal of 13644838 is 83844631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13644797 and 13644806.

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, 31078 + ... + 31513.

It is an arithmetic number, because the mean of its divisors is an integer number (2581920).

Almost surely, 2^13644838 is an apocalyptic number.

13644838 is a deficient number, since it is larger than the sum of its proper divisors (7010522).

13644838 is a wasteful number, since it uses less digits than its factorization.

13644838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62702.

The product of its digits is 55296, while the sum is 37.

The square root of 13644838 is about 3693.8919854268. The cubic root of 13644838 is about 238.9586712148.

The spelling of 13644838 in words is "thirteen million, six hundred forty-four thousand, eight hundred thirty-eight".