12449782 has 4 divisors (see below), whose sum is σ = 18674676. Its totient is φ = 6224890.

The previous prime is 12449737. The next prime is 12449803. The reversal of 12449782 is 28794421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28794421 = 109 ⋅264169.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112444 + ... + 3112447.

It is an arithmetic number, because the mean of its divisors is an integer number (4668669).

Almost surely, 2^12449782 is an apocalyptic number.

12449782 is a deficient number, since it is larger than the sum of its proper divisors (6224894).

12449782 is an equidigital number, since it uses as much as digits as its factorization.

12449782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224893.

The product of its digits is 32256, while the sum is 37.

The square root of 12449782 is about 3528.4248610393. The cubic root of 12449782 is about 231.7682361472.

It can be divided in two parts, 12449 and 782, that added together give a palindrome (13231).

The spelling of 12449782 in words is "twelve million, four hundred forty-nine thousand, seven hundred eighty-two".