2878056 has 48 divisors (see below), whose sum is σ = 7918560. Its totient is φ = 944160.

The previous prime is 2878039. The next prime is 2878067. The reversal of 2878056 is 6508782.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2878056.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4831 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (164970).

2^2878056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3959280).

2878056 is an abundant number, since it is smaller than the sum of its proper divisors (5040504).

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

2878056 is a wasteful number, since it uses less digits than its factorization.

2878056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2878056 is about 1696.4834216697. The cubic root of 2878056 is about 142.2437129345.

The spelling of 2878056 in words is "two million, eight hundred seventy-eight thousand, fifty-six".