12500444 has 24 divisors (see below), whose sum is σ = 24423168. Its totient is φ = 5549040.

The previous prime is 12500443. The next prime is 12500459. The reversal of 12500444 is 44400521.

It is a super-2 number, since 2×12500444² = 312522200394272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412 + ... + 5195.

It is an arithmetic number, because the mean of its divisors is an integer number (1017632).

Almost surely, 2^12500444 is an apocalyptic number.

It is an amenable number.

12500444 is a deficient number, since it is larger than the sum of its proper divisors (11922724).

12500444 is a wasteful number, since it uses less digits than its factorization.

12500444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665 (or 6663 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 12500444 is about 3535.5966964573. The cubic root of 12500444 is about 232.0821894687.

Adding to 12500444 its reverse (44400521), we get a palindrome (56900965).

The spelling of 12500444 in words is "twelve million, five hundred thousand, four hundred forty-four".