5643020 has 24 divisors (see below), whose sum is σ = 11904144. Its totient is φ = 2246976.

The previous prime is 5642999. The next prime is 5643041. The reversal of 5643020 is 203465.

It is an interprime number because it is at equal distance from previous prime (5642999) and next prime (5643041).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5642983 and 5643001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5162 + ... + 6158.

It is an arithmetic number, because the mean of its divisors is an integer number (496006).

Almost surely, 2^5643020 is an apocalyptic number.

It is an amenable number.

5643020 is an abundant number, since it is smaller than the sum of its proper divisors (6261124).

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

5643020 is a wasteful number, since it uses less digits than its factorization.

5643020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 5643020 is about 2375.5041570159. The cubic root of 5643020 is about 178.0343745421.

Adding to 5643020 its reverse (203465), we get a palindrome (5846485).

The spelling of 5643020 in words is "five million, six hundred forty-three thousand, twenty".