2788432 has 20 divisors (see below), whose sum is σ = 5493076. Its totient is φ = 1370880.

The previous prime is 2788427. The next prime is 2788433. The reversal of 2788432 is 2348872.

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 1971216 = 904^2 + 1404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788433) 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, 453 + ... + 2404.

2^2788432 is an apocalyptic number.

It is an amenable number.

2788432 is a deficient number, since it is larger than the sum of its proper divisors (2704644).

2788432 is a wasteful number, since it uses less digits than its factorization.

2788432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926 (or 2920 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 2788432 is about 1669.8598743607. The cubic root of 2788432 is about 140.7516039766.

The spelling of 2788432 in words is "two million, seven hundred eighty-eight thousand, four hundred thirty-two".