2842281 has 24 divisors (see below), whose sum is σ = 4684680. Its totient is φ = 1645056.

The previous prime is 2842253. The next prime is 2842283. The reversal of 2842281 is 1822482.

It can be written as a sum of positive squares in 4 ways, for example, as 19881 + 2822400 = 141^2 + 1680^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2842281 is a prime.

It is a super-2 number, since 2×2842281² = 16157122565922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1275 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (195195).

2^2842281 is an apocalyptic number.

It is an amenable number.

2842281 is a deficient number, since it is larger than the sum of its proper divisors (1842399).

2842281 is a wasteful number, since it uses less digits than its factorization.

2842281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1462 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 2842281 is about 1685.9065810418. The cubic root of 2842281 is about 141.6518781949.

The spelling of 2842281 in words is "two million, eight hundred forty-two thousand, two hundred eighty-one".