4428493 has 4 divisors (see below), whose sum is σ = 4548220. Its totient is φ = 4308768.

The previous prime is 4428491. The next prime is 4428497. The reversal of 4428493 is 3948244.

4428493 is nontrivially palindromic in base 12.

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 1909924 + 2518569 = 1382^2 + 1587^2 .

It is a cyclic number.

It is not a de Polignac number, because 4428493 - 2¹ = 4428491 is a prime.

It is a super-2 number, since 2×4428493² = 39223100502098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428491) 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, 59808 + ... + 59881.

It is an arithmetic number, because the mean of its divisors is an integer number (1137055).

Almost surely, 2^4428493 is an apocalyptic number.

It is an amenable number.

4428493 is a deficient number, since it is larger than the sum of its proper divisors (119727).

4428493 is a wasteful number, since it uses less digits than its factorization.

4428493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119726.

The product of its digits is 27648, while the sum is 34.

The square root of 4428493 is about 2104.3984888799. The cubic root of 4428493 is about 164.2172042723.

Subtracting from 4428493 its reverse (3948244), we obtain a square (480249 = 693²).

The spelling of 4428493 in words is "four million, four hundred twenty-eight thousand, four hundred ninety-three".