2822890 has 32 divisors (see below), whose sum is σ = 5932800. Its totient is φ = 966672.

The previous prime is 2822881. The next prime is 2822893. The reversal of 2822890 is 982282.

2822890 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 (2822893) 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 15 ways as a sum of consecutive naturals, for example, 3019 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (185400).

2^2822890 is an apocalyptic number.

2822890 is the 1372-nd pentagonal number.

2822890 is an abundant number, since it is smaller than the sum of its proper divisors (3109910).

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

2822890 is an equidigital number, since it uses as much as digits as its factorization.

2822890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2822890 is about 1680.1458270043. The cubic root of 2822890 is about 141.3290105379.

The spelling of 2822890 in words is "two million, eight hundred twenty-two thousand, eight hundred ninety".