4243443 has 4 divisors (see below), whose sum is σ = 5657928. Its totient is φ = 2828960.

The previous prime is 4243439. The next prime is 4243453. The reversal of 4243443 is 3443424.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4243443 - 2² = 4243439 is a prime.

It is a D-number.

4243443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4243433) 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, 707238 + ... + 707243.

It is an arithmetic number, because the mean of its divisors is an integer number (1414482).

Almost surely, 2^4243443 is an apocalyptic number.

4243443 is a deficient number, since it is larger than the sum of its proper divisors (1414485).

4243443 is a wasteful number, since it uses less digits than its factorization.

4243443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414484.

The product of its digits is 4608, while the sum is 24.

The square root of 4243443 is about 2059.9618928514. The cubic root of 4243443 is about 161.8972446982.

Adding to 4243443 its reverse (3443424), we get a palindrome (7686867).

The spelling of 4243443 in words is "four million, two hundred forty-three thousand, four hundred forty-three".