4428403 has 4 divisors (see below), whose sum is σ = 5061040. Its totient is φ = 3795768.

The previous prime is 4428383. The next prime is 4428421. The reversal of 4428403 is 3048244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4428403 is a prime.

It is a super-2 number, since 2×4428403² = 39221506260818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4428433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316308 + ... + 316321.

It is an arithmetic number, because the mean of its divisors is an integer number (1265260).

Almost surely, 2^4428403 is an apocalyptic number.

4428403 is a deficient number, since it is larger than the sum of its proper divisors (632637).

4428403 is an equidigital number, since it uses as much as digits as its factorization.

4428403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632636.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4428403 is about 2104.3771049886. The cubic root of 4428403 is about 164.2160918060.

The spelling of 4428403 in words is "four million, four hundred twenty-eight thousand, four hundred three".