2788344 has 80 divisors (see below), whose sum is σ = 8436120. Its totient is φ = 855360.

The previous prime is 2788343. The next prime is 2788349. The reversal of 2788344 is 4438872.

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

It is a junction number, because it is equal to n+sod(n) for n = 2788299 and 2788308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788343) 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, 8259 + ... + 8589.

2^2788344 is an apocalyptic number.

2788344 is a gapful number since it is divisible by the number (24) 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 2788344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4218060).

2788344 is an abundant number, since it is smaller than the sum of its proper divisors (5647776).

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

2788344 is a wasteful number, since it uses less digits than its factorization.

2788344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 349 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 2788344 is about 1669.8335246365. The cubic root of 2788344 is about 140.7501233032.

The spelling of 2788344 in words is "two million, seven hundred eighty-eight thousand, three hundred forty-four".