13000836 has 24 divisors (see below), whose sum is σ = 30442720. Its totient is φ = 4318272.

The previous prime is 13000831. The next prime is 13000849. The reversal of 13000836 is 63800031.

It is not an unprimeable number, because it can be changed into a prime (13000831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1920 + ... + 5448.

Almost surely, 2^13000836 is an apocalyptic number.

It is an amenable number.

13000836 is an abundant number, since it is smaller than the sum of its proper divisors (17441884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13000836 is a wasteful number, since it uses less digits than its factorization.

13000836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843 (or 3841 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13000836 is about 3605.6672059412. The cubic root of 13000836 is about 235.1385089610.

Adding to 13000836 its reverse (63800031), we get a palindrome (76800867).

The spelling of 13000836 in words is "thirteen million, eight hundred thirty-six", and thus it is an aban number.