12503472 has 20 divisors (see below), whose sum is σ = 32300760. Its totient is φ = 4167808.

The previous prime is 12503461. The next prime is 12503489. The reversal of 12503472 is 27430521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between odd and even.

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, 130197 + ... + 130292.

It is an arithmetic number, because the mean of its divisors is an integer number (1615038).

Almost surely, 2^12503472 is an apocalyptic number.

12503472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12503472 is an abundant number, since it is smaller than the sum of its proper divisors (19797288).

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

12503472 is a wasteful number, since it uses less digits than its factorization.

12503472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260500 (or 260494 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 12503472 is about 3536.0248867902. The cubic root of 12503472 is about 232.1009271534.

Adding to 12503472 its reverse (27430521), we get a palindrome (39933993).

The spelling of 12503472 in words is "twelve million, five hundred three thousand, four hundred seventy-two".