2820880880 has 40 divisors (see below), whose sum is σ = 6562569552. Its totient is φ = 1127660544.

The previous prime is 2820880877. The next prime is 2820880897. The reversal of 2820880880 is 880880282.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132239 + ... + 152081.

Almost surely, 2^2820880880 is an apocalyptic number.

2820880880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820880880 is an abundant number, since it is smaller than the sum of its proper divisors (3741688672).

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

2820880880 is a wasteful number, since it uses less digits than its factorization.

2820880880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21633 (or 21627 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 44.

The square root of 2820880880 is about 53111.9655068422. The cubic root of 2820880880 is about 1412.9547347332.

The spelling of 2820880880 in words is "two billion, eight hundred twenty million, eight hundred eighty thousand, eight hundred eighty".