2821090 has 16 divisors (see below), whose sum is σ = 5143680. Its totient is φ = 1113840.

The previous prime is 2821079. The next prime is 2821097. The reversal of 2821090 is 901282.

2821090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2821097) by changing a digit.

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, 996 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (321480).

2^2821090 is an apocalyptic number.

2821090 is a deficient number, since it is larger than the sum of its proper divisors (2322590).

2821090 is a wasteful number, since it uses less digits than its factorization.

2821090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2821090 is about 1679.6100737969. The cubic root of 2821090 is about 141.2989649334.

The spelling of 2821090 in words is "two million, eight hundred twenty-one thousand, ninety".