2804920 has 16 divisors (see below), whose sum is σ = 6311160. Its totient is φ = 1121952.

The previous prime is 2804917. The next prime is 2804927. The reversal of 2804920 is 294082.

2804920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804927) 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 3 ways as a sum of consecutive naturals, for example, 35022 + ... + 35101.

2^2804920 is an apocalyptic number.

2804920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2804920 is an abundant number, since it is smaller than the sum of its proper divisors (3506240).

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

2804920 is a wasteful number, since it uses less digits than its factorization.

2804920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70134 (or 70130 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2804920 is about 1674.7895390168. The cubic root of 2804920 is about 141.0284804062.

The spelling of 2804920 in words is "two million, eight hundred four thousand, nine hundred twenty".