13040012 has 6 divisors (see below), whose sum is σ = 22820028. Its totient is φ = 6520004.

The previous prime is 13039993. The next prime is 13040029. The reversal of 13040012 is 21004031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13039975 and 13040002.

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 as a sum of consecutive naturals, namely, 1629998 + ... + 1630005.

It is an arithmetic number, because the mean of its divisors is an integer number (3803338).

Almost surely, 2^13040012 is an apocalyptic number.

It is an amenable number.

13040012 is a deficient number, since it is larger than the sum of its proper divisors (9780016).

13040012 is a wasteful number, since it uses less digits than its factorization.

13040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260007 (or 3260005 counting only the distinct ones).

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

The square root of 13040012 is about 3611.0956785995. The cubic root of 13040012 is about 235.3744565806.

Adding to 13040012 its reverse (21004031), we get a palindrome (34044043).

The spelling of 13040012 in words is "thirteen million, forty thousand, twelve".