2804420 has 12 divisors (see below), whose sum is σ = 5889324. Its totient is φ = 1121760.

The previous prime is 2804411. The next prime is 2804437. The reversal of 2804420 is 244082.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 1943236 = 928^2 + 1394^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 140221 = 2804420 / (2 + 8 + 0 + 4 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2804392 and 2804401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70091 + ... + 70130.

It is an arithmetic number, because the mean of its divisors is an integer number (490777).

2^2804420 is an apocalyptic number.

2804420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2804420 is an abundant number, since it is smaller than the sum of its proper divisors (3084904).

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

2804420 is a wasteful number, since it uses less digits than its factorization.

2804420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140230 (or 140228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2804420 is about 1674.6402598767. The cubic root of 2804420 is about 141.0201000804.

The spelling of 2804420 in words is "two million, eight hundred four thousand, four hundred twenty".