428224103 has 4 divisors (see below), whose sum is σ = 428324640. Its totient is φ = 428123568.

The previous prime is 428224091. The next prime is 428224117. The reversal of 428224103 is 301422824.

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 428224103 - 2¹² = 428220007 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 (428224193) 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, 43583 + ... + 52496.

It is an arithmetic number, because the mean of its divisors is an integer number (107081160).

Almost surely, 2^428224103 is an apocalyptic number.

428224103 is a deficient number, since it is larger than the sum of its proper divisors (100537).

428224103 is an equidigital number, since it uses as much as digits as its factorization.

428224103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100536.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 428224103 is about 20693.5763704585. The cubic root of 428224103 is about 753.7437131303.

Adding to 428224103 its reverse (301422824), we get a palindrome (729646927).

The spelling of 428224103 in words is "four hundred twenty-eight million, two hundred twenty-four thousand, one hundred three".