2820889260 has 96 divisors (see below), whose sum is σ = 10029841920. Its totient is φ = 644773824.

The previous prime is 2820889243. The next prime is 2820889273. The reversal of 2820889260 is 629880282.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369354 + ... + 376913.

It is an arithmetic number, because the mean of its divisors is an integer number (104477520).

Almost surely, 2^2820889260 is an apocalyptic number.

2820889260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820889260 is an abundant number, since it is smaller than the sum of its proper divisors (7208952660).

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

2820889260 is a wasteful number, since it uses less digits than its factorization.

2820889260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746292 (or 746284 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2820889260 is about 53112.0443967279. The cubic root of 2820889260 is about 1412.9561338882.

The spelling of 2820889260 in words is "two billion, eight hundred twenty million, eight hundred eighty-nine thousand, two hundred sixty".