2868780 has 48 divisors (see below), whose sum is σ = 8114400. Its totient is φ = 757248.

The previous prime is 2868779. The next prime is 2868787. The reversal of 2868780 is 878682.

2868780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2868787) by changing a digit.

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, 8046 + ... + 8394.

It is an arithmetic number, because the mean of its divisors is an integer number (169050).

2^2868780 is an apocalyptic number.

2868780 is a gapful number since it is divisible by the number (20) 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 2868780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4057200).

2868780 is an abundant number, since it is smaller than the sum of its proper divisors (5245620).

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

2868780 is a wasteful number, since it uses less digits than its factorization.

2868780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2868780 is about 1693.7473247211. The cubic root of 2868780 is about 142.0907308798.

The spelling of 2868780 in words is "two million, eight hundred sixty-eight thousand, seven hundred eighty".