2220443 has 8 divisors (see below), whose sum is σ = 2397600. Its totient is φ = 2050048.

The previous prime is 2220431. The next prime is 2220457. The reversal of 2220443 is 3440222.

2220443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2220443 - 2⁸ = 2220187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220403) 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 7 ways as a sum of consecutive naturals, for example, 998 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (299700).

2^2220443 is an apocalyptic number.

2220443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2220443 is the 797-th centered heptagonal number.

2220443 is a deficient number, since it is larger than the sum of its proper divisors (177157).

2220443 is a wasteful number, since it uses less digits than its factorization.

2220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2220443 is about 1490.1150962258. The cubic root of 2220443 is about 130.4607516425.

Adding to 2220443 its reverse (3440222), we get a palindrome (5660665).

The spelling of 2220443 in words is "two million, two hundred twenty thousand, four hundred forty-three".