12444746 has 4 divisors (see below), whose sum is σ = 18667122. Its totient is φ = 6222372.

The previous prime is 12444743. The next prime is 12444749. The reversal of 12444746 is 64744421.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12444743) and next prime (12444749).

It can be written as a sum of positive squares in only one way, i.e., 9517225 + 2927521 = 3085^2 + 1711^2 .

It is not an unprimeable number, because it can be changed into a prime (12444743) 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 as a sum of consecutive naturals, namely, 3111185 + ... + 3111188.

Almost surely, 2^12444746 is an apocalyptic number.

12444746 is a deficient number, since it is larger than the sum of its proper divisors (6222376).

12444746 is an equidigital number, since it uses as much as digits as its factorization.

12444746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222375.

The product of its digits is 21504, while the sum is 32.

The square root of 12444746 is about 3527.7111559764. The cubic root of 12444746 is about 231.7369814567.

The spelling of 12444746 in words is "twelve million, four hundred forty-four thousand, seven hundred forty-six".