2805402858 has 16 divisors (see below), whose sum is σ = 5906111520. Its totient is φ = 885916656.

The previous prime is 2805402829. The next prime is 2805402913. The reversal of 2805402858 is 8582045082.

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 7 ways as a sum of consecutive naturals, for example, 12304285 + ... + 12304512.

It is an arithmetic number, because the mean of its divisors is an integer number (369131970).

Almost surely, 2^2805402858 is an apocalyptic number.

2805402858 is an abundant number, since it is smaller than the sum of its proper divisors (3100708662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2805402858 is a wasteful number, since it uses less digits than its factorization.

2805402858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24608821.

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 2805402858 is about 52966.0538269560. The cubic root of 2805402858 is about 1410.3657247572.

The spelling of 2805402858 in words is "two billion, eight hundred five million, four hundred two thousand, eight hundred fifty-eight".