4220743 has 8 divisors (see below), whose sum is σ = 4613760. Its totient is φ = 3843840.

The previous prime is 4220731. The next prime is 4220767. The reversal of 4220743 is 3470224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4220743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3478 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (576720).

Almost surely, 2^4220743 is an apocalyptic number.

4220743 is a deficient number, since it is larger than the sum of its proper divisors (393017).

4220743 is a wasteful number, since it uses less digits than its factorization.

4220743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 4220743 is about 2054.4446938285. Note that the first 3 decimals coincide. The cubic root of 4220743 is about 161.6080424183.

Adding to 4220743 its reverse (3470224), we get a palindrome (7690967).

The spelling of 4220743 in words is "four million, two hundred twenty thousand, seven hundred forty-three".