2799888 has 80 divisors (see below), whose sum is σ = 8916096. Its totient is φ = 737280.

The previous prime is 2799887. The next prime is 2799893. The reversal of 2799888 is 8889972.

Its product of digits (580608) is a multiple of the sum of its prime factors (672).

It is a self number, because there is not a number n which added to its sum of digits gives 2799888.

It is not an unprimeable number, because it can be changed into a prime (2799887) 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, 4048 + ... + 4688.

2^2799888 is an apocalyptic number.

2799888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2799888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4458048).

2799888 is an abundant number, since it is smaller than the sum of its proper divisors (6116208).

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

2799888 is a wasteful number, since it uses less digits than its factorization.

2799888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 666 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 2799888 is about 1673.2865863324. The cubic root of 2799888 is about 140.9440953366.

The spelling of 2799888 in words is "two million, seven hundred ninety-nine thousand, eight hundred eighty-eight".