4543020 has 96 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 1179072.

The previous prime is 4543013. The next prime is 4543031. The reversal of 4543020 is 203454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4542984 and 4543002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25291 + ... + 25469.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

Almost surely, 2^4543020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4543020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7257600).

4543020 is an abundant number, since it is smaller than the sum of its proper divisors (9972180).

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

4543020 is a wasteful number, since it uses less digits than its factorization.

4543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 236 counting only the distinct ones).

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

The square root of 4543020 is about 2131.4361355668. The cubic root of 4543020 is about 165.6208018397.

Adding to 4543020 its reverse (203454), we get a palindrome (4746474).

The spelling of 4543020 in words is "four million, five hundred forty-three thousand, twenty".