2225220 has 24 divisors (see below), whose sum is σ = 6230784. Its totient is φ = 593376.

The previous prime is 2225203. The next prime is 2225221. The reversal of 2225220 is 225222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2225220.

It is not an unprimeable number, because it can be changed into a prime (2225221) 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, 18484 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (259616).

2^2225220 is an apocalyptic number.

2225220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225220 is an abundant number, since it is smaller than the sum of its proper divisors (4005564).

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

2225220 is a wasteful number, since it uses less digits than its factorization.

2225220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37099 (or 37097 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2225220 is about 1491.7171313624. The cubic root of 2225220 is about 130.5542411886.

The spelling of 2225220 in words is "two million, two hundred twenty-five thousand, two hundred twenty".