28442243103 has 16 divisors (see below), whose sum is σ = 39809817600. Its totient is φ = 18038816640.

The previous prime is 28442243099. The next prime is 28442243117. The reversal of 28442243103 is 30134224482.

It is not a de Polignac number, because 28442243103 - 2² = 28442243099 is a prime.

It is a super-2 number, since 2×28442243103² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28442243143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586298 + ... + 2597271.

It is an arithmetic number, because the mean of its divisors is an integer number (2488113600).

Almost surely, 2^28442243103 is an apocalyptic number.

28442243103 is a deficient number, since it is larger than the sum of its proper divisors (11367574497).

28442243103 is a wasteful number, since it uses less digits than its factorization.

28442243103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183662.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 28442243103 its reverse (30134224482), we get a palindrome (58576467585).

The spelling of 28442243103 in words is "twenty-eight billion, four hundred forty-two million, two hundred forty-three thousand, one hundred three".