2690844 has 48 divisors (see below), whose sum is σ = 6924288. Its totient is φ = 808128.

The previous prime is 2690827. The next prime is 2690851. The reversal of 2690844 is 4480962.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7149 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (144256).

2^2690844 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 2690844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462144).

2690844 is an abundant number, since it is smaller than the sum of its proper divisors (4233444).

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

2690844 is a wasteful number, since it uses less digits than its factorization.

2690844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2690844 is about 1640.3792244478. The cubic root of 2690844 is about 139.0900853158.

The spelling of 2690844 in words is "two million, six hundred ninety thousand, eight hundred forty-four".