12504726 has 64 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 3755808.

The previous prime is 12504721. The next prime is 12504757. The reversal of 12504726 is 62740521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12504726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32805 + ... + 33183.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^12504726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12504726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15321600).

12504726 is an abundant number, since it is smaller than the sum of its proper divisors (18138474).

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

12504726 is a wasteful number, since it uses less digits than its factorization.

12504726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12504726 is about 3536.2022001011. The cubic root of 12504726 is about 232.1086861938.

The spelling of 12504726 in words is "twelve million, five hundred four thousand, seven hundred twenty-six".