2808890105 has 16 divisors (see below), whose sum is σ = 3861406080. Its totient is φ = 1921489152.

The previous prime is 2808890083. The next prime is 2808890141. The reversal of 2808890105 is 5010988082.

It is a cyclic number.

It is not a de Polignac number, because 2808890105 - 2¹² = 2808886009 is a prime.

It is a super-2 number, since 2×2808890105² = 15779727243933822050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81104 + ... + 110433.

It is an arithmetic number, because the mean of its divisors is an integer number (241337880).

Almost surely, 2^2808890105 is an apocalyptic number.

It is an amenable number.

2808890105 is a deficient number, since it is larger than the sum of its proper divisors (1052515975).

2808890105 is a wasteful number, since it uses less digits than its factorization.

2808890105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191968.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 2808890105 is about 52998.9632445768. The cubic root of 2808890105 is about 1410.9498663116.

The spelling of 2808890105 in words is "two billion, eight hundred eight million, eight hundred ninety thousand, one hundred five".