12504028 has 6 divisors (see below), whose sum is σ = 21882056. Its totient is φ = 6252012.

The previous prime is 12504001. The next prime is 12504029. The reversal of 12504028 is 82040521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563000 + ... + 1563007.

Almost surely, 2^12504028 is an apocalyptic number.

It is an amenable number.

12504028 is a deficient number, since it is larger than the sum of its proper divisors (9378028).

12504028 is a wasteful number, since it uses less digits than its factorization.

12504028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126011 (or 3126009 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 12504028 is about 3536.1035052724. The cubic root of 12504028 is about 232.1043674299.

Adding to 12504028 its reverse (82040521), we get a palindrome (94544549).

The spelling of 12504028 in words is "twelve million, five hundred four thousand, twenty-eight".