2218878 has 24 divisors (see below), whose sum is σ = 4849416. Its totient is φ = 733200.

The previous prime is 2218871. The next prime is 2218883. The reversal of 2218878 is 8788122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1888 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (202059).

2^2218878 is an apocalyptic number.

2218878 is an abundant number, since it is smaller than the sum of its proper divisors (2630538).

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

2218878 is a wasteful number, since it uses less digits than its factorization.

2218878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1077 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 2218878 is about 1489.5898764425. The cubic root of 2218878 is about 130.4300942373.

The spelling of 2218878 in words is "two million, two hundred eighteen thousand, eight hundred seventy-eight".