13000844 has 6 divisors (see below), whose sum is σ = 22751484. Its totient is φ = 6500420.

The previous prime is 13000831. The next prime is 13000849. The reversal of 13000844 is 44800031.

It is not an unprimeable number, because it can be changed into a prime (13000849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625102 + ... + 1625109.

It is an arithmetic number, because the mean of its divisors is an integer number (3791914).

Almost surely, 2^13000844 is an apocalyptic number.

It is an amenable number.

13000844 is a deficient number, since it is larger than the sum of its proper divisors (9750640).

13000844 is a wasteful number, since it uses less digits than its factorization.

13000844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250215 (or 3250213 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 13000844 is about 3605.6683153058. The cubic root of 13000844 is about 235.1385571914.

Adding to 13000844 its reverse (44800031), we get a palindrome (57800875).

The spelling of 13000844 in words is "thirteen million, eight hundred forty-four", and thus it is an aban number.