2944836 has 60 divisors (see below), whose sum is σ = 7877100. Its totient is φ = 959040.

The previous prime is 2944831. The next prime is 2944841. The reversal of 2944836 is 6384492.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2944831) and next prime (2944841).

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 2742336 = 450^2 + 1656^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2944836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19690 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (131285).

2^2944836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2944836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3938550).

2944836 is an abundant number, since it is smaller than the sum of its proper divisors (4932264).

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

2944836 is a wasteful number, since it uses less digits than its factorization.

2944836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 215 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2944836 is about 1716.0524467510. The cubic root of 2944836 is about 143.3354798068.

The spelling of 2944836 in words is "two million, nine hundred forty-four thousand, eight hundred thirty-six".