28008033349 has 4 divisors (see below), whose sum is σ = 28009423980. Its totient is φ = 28006642720.

The previous prime is 28008033329. The next prime is 28008033367. The reversal of 28008033349 is 94333080082.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21383212900 + 6624820449 = 146230^2 + 81393^2 .

It is a cyclic number.

It is not a de Polignac number, because 28008033349 - 2¹⁷ = 28007902277 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28008033329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664654 + ... + 705535.

It is an arithmetic number, because the mean of its divisors is an integer number (7002355995).

Almost surely, 2^28008033349 is an apocalyptic number.

It is an amenable number.

28008033349 is a deficient number, since it is larger than the sum of its proper divisors (1390631).

28008033349 is a wasteful number, since it uses less digits than its factorization.

28008033349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390630.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 28008033349 in words is "twenty-eight billion, eight million, thirty-three thousand, three hundred forty-nine".