2212878 has 16 divisors (see below), whose sum is σ = 4441680. Its totient is φ = 734976.

The previous prime is 2212877. The next prime is 2212883. The reversal of 2212878 is 8782122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (277605).

2^2212878 is an apocalyptic number.

2212878 is an abundant number, since it is smaller than the sum of its proper divisors (2228802).

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

2212878 is a wasteful number, since it uses less digits than its factorization.

2212878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331.

The product of its digits is 3584, while the sum is 30.

The square root of 2212878 is about 1487.5745359477. The cubic root of 2212878 is about 130.3124241038.

The spelling of 2212878 in words is "two million, two hundred twelve thousand, eight hundred seventy-eight".