4520443 has 4 divisors (see below), whose sum is σ = 4717008. Its totient is φ = 4323880.

The previous prime is 4520431. The next prime is 4520449. The reversal of 4520443 is 3440254.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4520443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4520449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98248 + ... + 98293.

It is an arithmetic number, because the mean of its divisors is an integer number (1179252).

Almost surely, 2^4520443 is an apocalyptic number.

4520443 is a deficient number, since it is larger than the sum of its proper divisors (196565).

4520443 is a wasteful number, since it uses less digits than its factorization.

4520443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196564.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4520443 is about 2126.1333448305. The cubic root of 4520443 is about 165.3459896261.

Adding to 4520443 its reverse (3440254), we get a palindrome (7960697).

The spelling of 4520443 in words is "four million, five hundred twenty thousand, four hundred forty-three".