2821304 has 16 divisors (see below), whose sum is σ = 5363520. Its totient is φ = 1391040.

The previous prime is 2821289. The next prime is 2821319. The reversal of 2821304 is 4031282.

It is an interprime number because it is at equal distance from previous prime (2821289) and next prime (2821319).

It is a congruent number.

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, 1832 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (335220).

2^2821304 is an apocalyptic number.

It is an amenable number.

2821304 is a deficient number, since it is larger than the sum of its proper divisors (2542216).

2821304 is a wasteful number, since it uses less digits than its factorization.

2821304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910 (or 4906 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2821304 is about 1679.6737778509. The cubic root of 2821304 is about 141.3025376912.

Adding to 2821304 its reverse (4031282), we get a palindrome (6852586).

It can be divided in two parts, 2821 and 304, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2821304 in words is "two million, eight hundred twenty-one thousand, three hundred four".