4428985 has 8 divisors (see below), whose sum is σ = 5798016. Its totient is φ = 3221040.

The previous prime is 4428971. The next prime is 4429031. The reversal of 4428985 is 5898244.

4428985 = 661² + 662² + ... + 670².

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

It is a de Polignac number, because none of the positive numbers 2^k-4428985 is a prime.

It is a Duffinian number.

4428985 is a lucky number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40209 + ... + 40318.

It is an arithmetic number, because the mean of its divisors is an integer number (724752).

Almost surely, 2^4428985 is an apocalyptic number.

It is an amenable number.

4428985 is a deficient number, since it is larger than the sum of its proper divisors (1369031).

4428985 is a wasteful number, since it uses less digits than its factorization.

4428985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80543.

The product of its digits is 92160, while the sum is 40.

The square root of 4428985 is about 2104.5153836454. The cubic root of 4428985 is about 164.2232854887.

The spelling of 4428985 in words is "four million, four hundred twenty-eight thousand, nine hundred eighty-five".