2805558420 has 48 divisors (see below), whose sum is σ = 8977788288. Its totient is φ = 641270400.

The previous prime is 2805558409. The next prime is 2805558461. The reversal of 2805558420 is 248555082.

2805558420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339531 + ... + 3340370.

It is an arithmetic number, because the mean of its divisors is an integer number (187037256).

Almost surely, 2^2805558420 is an apocalyptic number.

2805558420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2805558420 is an abundant number, since it is smaller than the sum of its proper divisors (6172229868).

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

2805558420 is a wasteful number, since it uses less digits than its factorization.

2805558420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679920 (or 6679918 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 2805558420 is about 52967.5223132062. The cubic root of 2805558420 is about 1410.3917929393.

The spelling of 2805558420 in words is "two billion, eight hundred five million, five hundred fifty-eight thousand, four hundred twenty".