2220543 has 12 divisors (see below), whose sum is σ = 3454360. Its totient is φ = 1366416.

The previous prime is 2220539. The next prime is 2220551. The reversal of 2220543 is 3450222.

It is not a de Polignac number, because 2220543 - 2² = 2220539 is a prime.

It is a super-2 number, since 2×2220543² = 9861622429698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9373 + ... + 9606.

2^2220543 is an apocalyptic number.

2220543 is a deficient number, since it is larger than the sum of its proper divisors (1233817).

2220543 is a wasteful number, since it uses less digits than its factorization.

2220543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18998 (or 18995 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2220543 is about 1490.1486503030. The cubic root of 2220543 is about 130.4627100925.

Adding to 2220543 its reverse (3450222), we get a palindrome (5670765).

The spelling of 2220543 in words is "two million, two hundred twenty thousand, five hundred forty-three".