28246449044 has 24 divisors (see below), whose sum is σ = 53974021248. Its totient is φ = 12827632640.

The previous prime is 28246448987. The next prime is 28246449071. The reversal of 28246449044 is 44094464282.

It is a self number, because there is not a number n which added to its sum of digits gives 28246449044.

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 in 7 ways as a sum of consecutive naturals, for example, 242477 + ... + 339540.

It is an arithmetic number, because the mean of its divisors is an integer number (2248917552).

Almost surely, 2^28246449044 is an apocalyptic number.

It is an amenable number.

28246449044 is a deficient number, since it is larger than the sum of its proper divisors (25727572204).

28246449044 is a wasteful number, since it uses less digits than its factorization.

28246449044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583135 (or 583133 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 28246449044 in words is "twenty-eight billion, two hundred forty-six million, four hundred forty-nine thousand, forty-four".