4428019 has 4 divisors (see below), whose sum is σ = 4432320. Its totient is φ = 4423720.

The previous prime is 4428013. The next prime is 4428023. The reversal of 4428019 is 9108244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4428019 is a prime.

It is a super-2 number, since 2×4428019² = 39214704528722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4428013) 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, 414 + ... + 3004.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^4428019 is an apocalyptic number.

4428019 is a deficient number, since it is larger than the sum of its proper divisors (4301).

4428019 is a wasteful number, since it uses less digits than its factorization.

4428019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4428019 is about 2104.2858646106. The cubic root of 4428019 is about 164.2113451135.

The spelling of 4428019 in words is "four million, four hundred twenty-eight thousand, nineteen".