2788618 has 16 divisors (see below), whose sum is σ = 4818240. Its totient is φ = 1185696.

The previous prime is 2788603. The next prime is 2788619. The reversal of 2788618 is 8168872.

It is a super-4 number, since 4×2788618⁴ (a number of 27 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2788619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230 + ... + 2662.

It is an arithmetic number, because the mean of its divisors is an integer number (301140).

2^2788618 is an apocalyptic number.

2788618 is a deficient number, since it is larger than the sum of its proper divisors (2029622).

2788618 is a wasteful number, since it uses less digits than its factorization.

2788618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581.

The product of its digits is 43008, while the sum is 40.

The square root of 2788618 is about 1669.9155667279. The cubic root of 2788618 is about 140.7547334793.

The spelling of 2788618 in words is "two million, seven hundred eighty-eight thousand, six hundred eighteen".