12224782 has 4 divisors (see below), whose sum is σ = 18337176. Its totient is φ = 6112390.

The previous prime is 12224767. The next prime is 12224783. The reversal of 12224782 is 28742221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12224782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056194 + ... + 3056197.

It is an arithmetic number, because the mean of its divisors is an integer number (4584294).

Almost surely, 2^12224782 is an apocalyptic number.

12224782 is a deficient number, since it is larger than the sum of its proper divisors (6112394).

12224782 is an equidigital number, since it uses as much as digits as its factorization.

12224782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112393.

The product of its digits is 3584, while the sum is 28.

The square root of 12224782 is about 3496.3955725861. The cubic root of 12224782 is about 230.3635209213.

The spelling of 12224782 in words is "twelve million, two hundred twenty-four thousand, seven hundred eighty-two".