2245220 has 12 divisors (see below), whose sum is σ = 4715004. Its totient is φ = 898080.

The previous prime is 2245189. The next prime is 2245223. The reversal of 2245220 is 225422.

It can be written as a sum of positive squares in 2 ways, for example, as 1763584 + 481636 = 1328^2 + 694^2 .

It is not an unprimeable number, because it can be changed into a prime (2245223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56111 + ... + 56150.

It is an arithmetic number, because the mean of its divisors is an integer number (392917).

2^2245220 is an apocalyptic number.

2245220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245220 is an abundant number, since it is smaller than the sum of its proper divisors (2469784).

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

2245220 is a wasteful number, since it uses less digits than its factorization.

2245220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112270 (or 112268 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2245220 is about 1498.4058195295. The cubic root of 2245220 is about 130.9442102629.

The spelling of 2245220 in words is "two million, two hundred forty-five thousand, two hundred twenty".