12505746 has 32 divisors (see below), whose sum is σ = 27604800. Its totient is φ = 3745280.

The previous prime is 12505723. The next prime is 12505747. The reversal of 12505746 is 64750521.

It is not an unprimeable number, because it can be changed into a prime (12505747) 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 15 ways as a sum of consecutive naturals, for example, 4810 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (862650).

Almost surely, 2^12505746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12505746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13802400).

12505746 is an abundant number, since it is smaller than the sum of its proper divisors (15099054).

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

12505746 is a wasteful number, since it uses less digits than its factorization.

12505746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 12505746 is about 3536.3464196823. The cubic root of 12505746 is about 232.1149969924.

It can be divided in two parts, 1250 and 5746, that added together give a palindrome (6996).

The spelling of 12505746 in words is "twelve million, five hundred five thousand, seven hundred forty-six".