12390044 has 12 divisors (see below), whose sum is σ = 21957600. Its totient is φ = 6116448.

The previous prime is 12390041. The next prime is 12390083. The reversal of 12390044 is 44009321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390041) by changing a digit.

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, 19289 + ... + 19920.

It is an arithmetic number, because the mean of its divisors is an integer number (1829800).

Almost surely, 2^12390044 is an apocalyptic number.

It is an amenable number.

12390044 is a deficient number, since it is larger than the sum of its proper divisors (9567556).

12390044 is a wasteful number, since it uses less digits than its factorization.

12390044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39292 (or 39290 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12390044 is about 3519.9494314549. The cubic root of 12390044 is about 231.3969424989.

Adding to 12390044 its reverse (44009321), we get a palindrome (56399365).

The spelling of 12390044 in words is "twelve million, three hundred ninety thousand, forty-four".