2285220 has 48 divisors (see below), whose sum is σ = 7314048. Its totient is φ = 522240.

The previous prime is 2285219. The next prime is 2285221. The reversal of 2285220 is 225822.

2285220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2285219) and next prime (2285221).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2285221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2301 + ... + 3140.

It is an arithmetic number, because the mean of its divisors is an integer number (152376).

2^2285220 is an apocalyptic number.

2285220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2285220 is an abundant number, since it is smaller than the sum of its proper divisors (5028828).

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

2285220 is a wasteful number, since it uses less digits than its factorization.

2285220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2285220 is about 1511.6944135638. The cubic root of 2285220 is about 131.7172552138.

The spelling of 2285220 in words is "two million, two hundred eighty-five thousand, two hundred twenty".