4421245 has 8 divisors (see below), whose sum is σ = 5378616. Its totient is φ = 3488256.

The previous prime is 4421237. The next prime is 4421257. The reversal of 4421245 is 5421244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 284089 + 4137156 = 533^2 + 2034^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4421245 - 2³ = 4421237 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 5692 + ... + 6421.

It is an arithmetic number, because the mean of its divisors is an integer number (672327).

Almost surely, 2^4421245 is an apocalyptic number.

It is an amenable number.

4421245 is a deficient number, since it is larger than the sum of its proper divisors (957371).

4421245 is a wasteful number, since it uses less digits than its factorization.

4421245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191.

The product of its digits is 1280, while the sum is 22.

The square root of 4421245 is about 2102.6756763705. The cubic root of 4421245 is about 164.1275653338.

Adding to 4421245 its reverse (5421244), we get a palindrome (9842489).

Subtracting 4421245 from its reverse (5421244), we obtain a palindrome (999999).

The spelling of 4421245 in words is "four million, four hundred twenty-one thousand, two hundred forty-five".