2804281 has 4 divisors (see below), whose sum is σ = 2811364. Its totient is φ = 2797200.

The previous prime is 2804273. The next prime is 2804293. The reversal of 2804281 is 1824082.

2804281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1155625 + 1648656 = 1075^2 + 1284^2 .

It is a cyclic number.

It is not a de Polignac number, because 2804281 - 2³ = 2804273 is a prime.

It is a super-2 number, since 2×2804281² = 15727983853922, which contains 22 as substring.

It is a Duffinian number.

2804281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2804251) 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, 2910 + ... + 3751.

It is an arithmetic number, because the mean of its divisors is an integer number (702841).

2^2804281 is an apocalyptic number.

It is an amenable number.

2804281 is a deficient number, since it is larger than the sum of its proper divisors (7083).

2804281 is an equidigital number, since it uses as much as digits as its factorization.

2804281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2804281 is about 1674.5987579119. The cubic root of 2804281 is about 141.0177701729.

The spelling of 2804281 in words is "two million, eight hundred four thousand, two hundred eighty-one".