2878680 has 128 divisors (see below), whose sum is σ = 10368000. Its totient is φ = 625152.

The previous prime is 2878679. The next prime is 2878693. The reversal of 2878680 is 868782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19246 + ... + 19394.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^2878680 is an apocalyptic number.

2878680 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 2878680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5184000).

2878680 is an abundant number, since it is smaller than the sum of its proper divisors (7489320).

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

2878680 is a wasteful number, since it uses less digits than its factorization.

2878680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 189 counting only the distinct ones).

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

The square root of 2878680 is about 1696.6673215454. The cubic root of 2878680 is about 142.2539922877.

The spelling of 2878680 in words is "two million, eight hundred seventy-eight thousand, six hundred eighty".