13900012 has 24 divisors (see below), whose sum is σ = 28553504. Its totient is φ = 5795712.

The previous prime is 13899989. The next prime is 13900013. The reversal of 13900012 is 21000931.

It is not an unprimeable number, because it can be changed into a prime (13900013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5673 + ... + 7744.

Almost surely, 2^13900012 is an apocalyptic number.

It is an amenable number.

13900012 is an abundant number, since it is smaller than the sum of its proper divisors (14653492).

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

13900012 is a wasteful number, since it uses less digits than its factorization.

13900012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13465 (or 13463 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13900012 is about 3728.2719857864. The cubic root of 13900012 is about 240.4390804708.

Adding to 13900012 its reverse (21000931), we get a palindrome (34900943).

The spelling of 13900012 in words is "thirteen million, nine hundred thousand, twelve".