13004012 has 18 divisors (see below), whose sum is σ = 26472852. Its totient is φ = 5573064.

The previous prime is 13003987. The next prime is 13004051. The reversal of 13004012 is 21040031.

It is a happy number.

It is a super-2 number, since 2×13004012² = 338208656192288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13003984 and 13004002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32978 + ... + 33369.

It is an arithmetic number, because the mean of its divisors is an integer number (1470714).

Almost surely, 2^13004012 is an apocalyptic number.

It is an amenable number.

13004012 is an abundant number, since it is smaller than the sum of its proper divisors (13468840).

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

13004012 is a wasteful number, since it uses less digits than its factorization.

13004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66365 (or 66356 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13004012 is about 3606.1075968418. The cubic root of 13004012 is about 235.1576548861.

Adding to 13004012 its reverse (21040031), we get a palindrome (34044043).

The spelling of 13004012 in words is "thirteen million, four thousand, twelve".