2986840 has 32 divisors (see below), whose sum is σ = 6804000. Its totient is φ = 1179904.

The previous prime is 2986829. The next prime is 2986859. The reversal of 2986840 is 486892.

2986840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2986840.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3141 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (212625).

2^2986840 is an apocalyptic number.

2986840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2986840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3402000).

2986840 is an abundant number, since it is smaller than the sum of its proper divisors (3817160).

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

2986840 is a wasteful number, since it uses less digits than its factorization.

2986840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2986840 is about 1728.2476674366. The cubic root of 2986840 is about 144.0137589734.

The spelling of 2986840 in words is "two million, nine hundred eighty-six thousand, eight hundred forty".