12803642 has 8 divisors (see below), whose sum is σ = 19221300. Its totient is φ = 6396544.

The previous prime is 12803611. The next prime is 12803653. The reversal of 12803642 is 24630821.

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 1100401 = 3421^2 + 1049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 2084 + ... + 5472.

Almost surely, 2^12803642 is an apocalyptic number.

12803642 is a deficient number, since it is larger than the sum of its proper divisors (6417658).

12803642 is a wasteful number, since it uses less digits than its factorization.

12803642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12803642 is about 3578.2177127727. The cubic root of 12803642 is about 233.9436029377.

The spelling of 12803642 in words is "twelve million, eight hundred three thousand, six hundred forty-two".