2840844 has 12 divisors (see below), whose sum is σ = 6628664. Its totient is φ = 946944.

The previous prime is 2840801. The next prime is 2840857. The reversal of 2840844 is 4480482.

It is a tau number, because it is divible by the number of its divisors (12).

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, 118357 + ... + 118380.

2^2840844 is an apocalyptic number.

It is an amenable number.

2840844 is an abundant number, since it is smaller than the sum of its proper divisors (3787820).

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

2840844 is a wasteful number, since it uses less digits than its factorization.

2840844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236744 (or 236742 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 2840844 is about 1685.4803469634. The cubic root of 2840844 is about 141.6280020589.

The spelling of 2840844 in words is "two million, eight hundred forty thousand, eight hundred forty-four".