2812842 has 12 divisors (see below), whose sum is σ = 6094530. Its totient is φ = 937608.

The previous prime is 2812829. The next prime is 2812853. The reversal of 2812842 is 2482182.

It can be written as a sum of positive squares in only one way, i.e., 2653641 + 159201 = 1629^2 + 399^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 78117 + ... + 78152.

2^2812842 is an apocalyptic number.

2812842 is an abundant number, since it is smaller than the sum of its proper divisors (3281688).

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

2812842 is a wasteful number, since it uses less digits than its factorization.

2812842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156277 (or 156274 counting only the distinct ones).

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

The square root of 2812842 is about 1677.1529447251. The cubic root of 2812842 is about 141.1611255993.

The spelling of 2812842 in words is "two million, eight hundred twelve thousand, eight hundred forty-two".