420224443 has 8 divisors (see below), whose sum is σ = 424263312. Its totient is φ = 416205216.

The previous prime is 420224381. The next prime is 420224449. The reversal of 420224443 is 344422024.

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 420224443 - 2¹⁷ = 420093371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420224449) 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, 40021 + ... + 49417.

It is an arithmetic number, because the mean of its divisors is an integer number (53032914).

Almost surely, 2^420224443 is an apocalyptic number.

420224443 is a deficient number, since it is larger than the sum of its proper divisors (4038869).

420224443 is a wasteful number, since it uses less digits than its factorization.

420224443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9821.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 420224443 is about 20499.3766490594. The cubic root of 420224443 is about 749.0206137750.

Adding to 420224443 its reverse (344422024), we get a palindrome (764646467).

The spelling of 420224443 in words is "four hundred twenty million, two hundred twenty-four thousand, four hundred forty-three".