12426004 has 12 divisors (see below), whose sum is σ = 21892500. Its totient is φ = 6171008.

The previous prime is 12425999. The next prime is 12426041. The reversal of 12426004 is 40062421.

It can be written as a sum of positive squares in 2 ways, for example, as 6656400 + 5769604 = 2580^2 + 2402^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9829 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (1824375).

Almost surely, 2^12426004 is an apocalyptic number.

It is an amenable number.

12426004 is a deficient number, since it is larger than the sum of its proper divisors (9466496).

12426004 is a wasteful number, since it uses less digits than its factorization.

12426004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21002 (or 21000 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12426004 is about 3525.0537584553. The cubic root of 12426004 is about 231.6205897240.

Adding to 12426004 its reverse (40062421), we get a palindrome (52488425).

The spelling of 12426004 in words is "twelve million, four hundred twenty-six thousand, four".