4428733 has 4 divisors (see below), whose sum is σ = 4512348. Its totient is φ = 4345120.

The previous prime is 4428713. The next prime is 4428737. The reversal of 4428733 is 3378244.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1954404 + 2474329 = 1398^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 4428733 - 2⁵ = 4428701 is a prime.

It is a super-2 number, since 2×4428733² = 39227351970578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4428695 and 4428704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41728 + ... + 41833.

It is an arithmetic number, because the mean of its divisors is an integer number (1128087).

Almost surely, 2^4428733 is an apocalyptic number.

It is an amenable number.

4428733 is a deficient number, since it is larger than the sum of its proper divisors (83615).

4428733 is an equidigital number, since it uses as much as digits as its factorization.

4428733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83614.

The product of its digits is 16128, while the sum is 31.

The square root of 4428733 is about 2104.4555115279. The cubic root of 4428733 is about 164.2201707756.

The spelling of 4428733 in words is "four million, four hundred twenty-eight thousand, seven hundred thirty-three".