2840994 has 80 divisors (see below), whose sum is σ = 7318080. Its totient is φ = 816480.

The previous prime is 2840987. The next prime is 2841011. The reversal of 2840994 is 4990482.

It is a happy number.

2840994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 39979 + ... + 40049.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2^2840994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2840994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3659040).

2840994 is an abundant number, since it is smaller than the sum of its proper divisors (4477086).

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

2840994 is a wasteful number, since it uses less digits than its factorization.

2840994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2840994 is about 1685.5248440768. The cubic root of 2840994 is about 141.6304947250.

The spelling of 2840994 in words is "two million, eight hundred forty thousand, nine hundred ninety-four".