2804388 has 48 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 861184.

The previous prime is 2804383. The next prime is 2804407. The reversal of 2804388 is 8834082.

It is not an unprimeable number, because it can be changed into a prime (2804383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11920 + ... + 12152.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2804388 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 2804388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3538080).

2804388 is an abundant number, since it is smaller than the sum of its proper divisors (4271772).

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

2804388 is a wasteful number, since it uses less digits than its factorization.

2804388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 2804388 is about 1674.6307055587. The cubic root of 2804388 is about 141.0195637056.

The spelling of 2804388 in words is "two million, eight hundred four thousand, three hundred eighty-eight".