2222780 has 24 divisors (see below), whose sum is σ = 5335008. Its totient is φ = 762048.

The previous prime is 2222761. The next prime is 2222783. The reversal of 2222780 is 872222.

It is a happy number.

2222780 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

2222780 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222783) 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, 7799 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (222292).

2^2222780 is an apocalyptic number.

2222780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222780 is an abundant number, since it is smaller than the sum of its proper divisors (3112228).

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

2222780 is a wasteful number, since it uses less digits than its factorization.

2222780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893 (or 15891 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2222780 is about 1490.8990576159. The cubic root of 2222780 is about 130.5065052565.

The spelling of 2222780 in words is "two million, two hundred twenty-two thousand, seven hundred eighty".