2820450 has 24 divisors (see below), whose sum is σ = 6995088. Its totient is φ = 752080.

The previous prime is 2820407. The next prime is 2820479. The reversal of 2820450 is 540282.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9252 + ... + 9551.

It is an arithmetic number, because the mean of its divisors is an integer number (291462).

2^2820450 is an apocalyptic number.

2820450 is an abundant number, since it is smaller than the sum of its proper divisors (4174638).

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

2820450 is a wasteful number, since it uses less digits than its factorization.

2820450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818 (or 18813 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2820450 is about 1679.4195425801. The cubic root of 2820450 is about 141.2882789720.

The spelling of 2820450 in words is "two million, eight hundred twenty thousand, four hundred fifty".