3028820 has 24 divisors (see below), whose sum is σ = 6534024. Its totient is φ = 1178496.

The previous prime is 3028819. The next prime is 3028841. The reversal of 3028820 is 288203.

3028820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 712336 + 2316484 = 844^2 + 1522^2 .

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, 1307 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (272251).

Almost surely, 2^3028820 is an apocalyptic number.

It is an amenable number.

3028820 is an abundant number, since it is smaller than the sum of its proper divisors (3505204).

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

3028820 is a wasteful number, since it uses less digits than its factorization.

3028820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 3028820 is about 1740.3505394029. The cubic root of 3028820 is about 144.6853263205.

The spelling of 3028820 in words is "three million, twenty-eight thousand, eight hundred twenty".