2788045 has 16 divisors (see below), whose sum is σ = 3669120. Its totient is φ = 2021184.

The previous prime is 2788033. The next prime is 2788057. The reversal of 2788045 is 5408872.

2788045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2788033) and next prime (2788057).

It is a cyclic number.

It is not a de Polignac number, because 2788045 - 2¹¹ = 2785997 is a prime.

2788045 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2788045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3472 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2^2788045 is an apocalyptic number.

It is an amenable number.

2788045 is a deficient number, since it is larger than the sum of its proper divisors (881075).

2788045 is a wasteful number, since it uses less digits than its factorization.

2788045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 2788045 is about 1669.7439923533. The cubic root of 2788045 is about 140.7450921460.

The spelling of 2788045 in words is "two million, seven hundred eighty-eight thousand, forty-five".