2220243 has 8 divisors (see below), whose sum is σ = 2976000. Its totient is φ = 1472328.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220243 is 3420222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220243 - 2⁹ = 2219731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220203) 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, 1263 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (372000).

2^2220243 is an apocalyptic number.

2220243 is a deficient number, since it is larger than the sum of its proper divisors (755757).

2220243 is a wasteful number, since it uses less digits than its factorization.

2220243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2220243 is about 1490.0479858045. The cubic root of 2220243 is about 130.4568345663.

Adding to 2220243 its reverse (3420222), we get a palindrome (5640465).

The spelling of 2220243 in words is "two million, two hundred twenty thousand, two hundred forty-three".