4428145 has 8 divisors (see below), whose sum is σ = 5325120. Its totient is φ = 3534960.

The previous prime is 4428139. The next prime is 4428161. The reversal of 4428145 is 5418244.

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

It is not a de Polignac number, because 4428145 - 2⁵ = 4428113 is a prime.

4428145 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3780 + ... + 4810.

It is an arithmetic number, because the mean of its divisors is an integer number (665640).

Almost surely, 2^4428145 is an apocalyptic number.

It is an amenable number.

4428145 is a deficient number, since it is larger than the sum of its proper divisors (896975).

4428145 is a wasteful number, since it uses less digits than its factorization.

4428145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 5120, while the sum is 28.

The square root of 4428145 is about 2104.3158032957. The cubic root of 4428145 is about 164.2129026522.

Subtracting 4428145 from its reverse (5418244), we obtain a palindrome (990099).

The spelling of 4428145 in words is "four million, four hundred twenty-eight thousand, one hundred forty-five".