12822442 has 4 divisors (see below), whose sum is σ = 19233666. Its totient is φ = 6411220.

The previous prime is 12822413. The next prime is 12822451. The reversal of 12822442 is 24422821.

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

It can be written as a sum of positive squares in only one way, i.e., 12737761 + 84681 = 3569^2 + 291^2 .

It is an unprimeable number.

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, 3205609 + ... + 3205612.

Almost surely, 2^12822442 is an apocalyptic number.

12822442 is a deficient number, since it is larger than the sum of its proper divisors (6411224).

12822442 is an equidigital number, since it uses as much as digits as its factorization.

12822442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6411223.

The product of its digits is 2048, while the sum is 25.

The square root of 12822442 is about 3580.8437553180. The cubic root of 12822442 is about 234.0580492504.

The spelling of 12822442 in words is "twelve million, eight hundred twenty-two thousand, four hundred forty-two".