2220860 has 12 divisors (see below), whose sum is σ = 4663848. Its totient is φ = 888336.

The previous prime is 2220839. The next prime is 2220887. The reversal of 2220860 is 680222.

2220860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 111043 = 2220860 / (2 + 2 + 2 + 0 + 8 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55502 + ... + 55541.

It is an arithmetic number, because the mean of its divisors is an integer number (388654).

2^2220860 is an apocalyptic number.

2220860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220860 is an abundant number, since it is smaller than the sum of its proper divisors (2442988).

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

2220860 is a wasteful number, since it uses less digits than its factorization.

2220860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111052 (or 111050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2220860 is about 1490.2550117346. The cubic root of 2220860 is about 130.4689179902.

The spelling of 2220860 in words is "two million, two hundred twenty thousand, eight hundred sixty".