42224003 has 16 divisors (see below), whose sum is σ = 44382240. Its totient is φ = 40144896.

The previous prime is 42223997. The next prime is 42224033. The reversal of 42224003 is 30042224.

It is a Cunningham number, because it is equal to 6498²-1.

It is a cyclic number.

It is not a de Polignac number, because 42224003 - 2⁸ = 42223747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42224033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435251 + ... + 435347.

It is an arithmetic number, because the mean of its divisors is an integer number (2773890).

Almost surely, 2^42224003 is an apocalyptic number.

42224003 is a deficient number, since it is larger than the sum of its proper divisors (2158237).

42224003 is an equidigital number, since it uses as much as digits as its factorization.

42224003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42224003 is about 6497.9999230532. Note that the first 4 decimals coincide. The cubic root of 42224003 is about 348.2195376755.

Adding to 42224003 its reverse (30042224), we get a palindrome (72266227).

The spelling of 42224003 in words is "forty-two million, two hundred twenty-four thousand, three".