2193220 has 12 divisors (see below), whose sum is σ = 4605804. Its totient is φ = 877280.

The previous prime is 2193209. The next prime is 2193223. The reversal of 2193220 is 223912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 492804 = 1304^2 + 702^2 .

It is not an unprimeable number, because it can be changed into a prime (2193223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54811 + ... + 54850.

It is an arithmetic number, because the mean of its divisors is an integer number (383817).

2^2193220 is an apocalyptic number.

2193220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2193220 is an abundant number, since it is smaller than the sum of its proper divisors (2412584).

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

2193220 is a wasteful number, since it uses less digits than its factorization.

2193220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109670 (or 109668 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2193220 is about 1480.9523962640. The cubic root of 2193220 is about 129.9254009874.

It can be divided in two parts, 21932 and 20, that added together give a cube (21952 = 28³).

The spelling of 2193220 in words is "two million, one hundred ninety-three thousand, two hundred twenty".