2878278 has 16 divisors (see below), whose sum is σ = 6199536. Its totient is φ = 885600.

The previous prime is 2878247. The next prime is 2878297. The reversal of 2878278 is 8728782.

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 7 ways as a sum of consecutive naturals, for example, 18373 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (387471).

2^2878278 is an apocalyptic number.

2878278 is an abundant number, since it is smaller than the sum of its proper divisors (3321258).

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

2878278 is a wasteful number, since it uses less digits than its factorization.

2878278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36919.

The product of its digits is 100352, while the sum is 42.

The square root of 2878278 is about 1696.5488498714. The cubic root of 2878278 is about 142.2473701823.

The spelling of 2878278 in words is "two million, eight hundred seventy-eight thousand, two hundred seventy-eight".