2821080 has 32 divisors (see below), whose sum is σ = 8463600. Its totient is φ = 752256.

The previous prime is 2821079. The next prime is 2821097. The reversal of 2821080 is 801282.

2821080 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11635 + ... + 11874.

2^2821080 is an apocalyptic number.

2821080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2821080 is an abundant number, since it is smaller than the sum of its proper divisors (5642520).

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

2821080 is a wasteful number, since it uses less digits than its factorization.

2821080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523 (or 23519 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2821080 is about 1679.6070969128. The cubic root of 2821080 is about 141.2987979777.

The spelling of 2821080 in words is "two million, eight hundred twenty-one thousand, eighty".