2788404 has 12 divisors (see below), whose sum is σ = 6506304. Its totient is φ = 929464.

The previous prime is 2788403. The next prime is 2788417. The reversal of 2788404 is 4048872.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116172 + ... + 116195.

It is an arithmetic number, because the mean of its divisors is an integer number (542192).

2^2788404 is an apocalyptic number.

It is an amenable number.

2788404 is an abundant number, since it is smaller than the sum of its proper divisors (3717900).

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

2788404 is a wasteful number, since it uses less digits than its factorization.

2788404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232374 (or 232372 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 2788404 is about 1669.8514904027. The cubic root of 2788404 is about 140.7511328567.

The spelling of 2788404 in words is "two million, seven hundred eighty-eight thousand, four hundred four".