13000944 has 40 divisors (see below), whose sum is σ = 36640512. Its totient is φ = 3939520.

The previous prime is 13000943. The next prime is 13000963. The reversal of 13000944 is 44900031.

It is a super-2 number, since 2×13000944² = 338049089782272, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13000944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000943) 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, 11784 + ... + 12839.

Almost surely, 2^13000944 is an apocalyptic number.

It is an amenable number.

13000944 is an abundant number, since it is smaller than the sum of its proper divisors (23639568).

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

13000944 is a wasteful number, since it uses less digits than its factorization.

13000944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24645 (or 24639 counting only the distinct ones).

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

The square root of 13000944 is about 3605.6821823339. The cubic root of 13000944 is about 235.1391600701.

Adding to 13000944 its reverse (44900031), we get a palindrome (57900975).

The spelling of 13000944 in words is "thirteen million, nine hundred forty-four", and thus it is an aban number.