4428393 has 8 divisors (see below), whose sum is σ = 5929056. Its totient is φ = 2940000.

The previous prime is 4428383. The next prime is 4428421. The reversal of 4428393 is 3938244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4428393 - 2⁹ = 4427881 is a prime.

It is a super-2 number, since 2×4428393² = 39221329124898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4428323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188 + ... + 3693.

It is an arithmetic number, because the mean of its divisors is an integer number (741132).

Almost surely, 2^4428393 is an apocalyptic number.

It is an amenable number.

4428393 is a deficient number, since it is larger than the sum of its proper divisors (1500663).

4428393 is a wasteful number, since it uses less digits than its factorization.

4428393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135.

The product of its digits is 20736, while the sum is 33.

The square root of 4428393 is about 2104.3747289872. The cubic root of 4428393 is about 164.2159681977.

The spelling of 4428393 in words is "four million, four hundred twenty-eight thousand, three hundred ninety-three".