4428281 has 16 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 3673920.

The previous prime is 4428247. The next prime is 4428283. The reversal of 4428281 is 1828244.

It is a cyclic number.

It is not a de Polignac number, because 4428281 - 2¹⁸ = 4166137 is a prime.

It is a super-2 number, since 2×4428281² = 39219345229922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4428283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24650 + ... + 24828.

It is an arithmetic number, because the mean of its divisors is an integer number (328860).

Almost surely, 2^4428281 is an apocalyptic number.

It is an amenable number.

4428281 is a deficient number, since it is larger than the sum of its proper divisors (833479).

4428281 is a wasteful number, since it uses less digits than its factorization.

4428281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its digits is 4096, while the sum is 29.

The square root of 4428281 is about 2104.3481175889. The cubic root of 4428281 is about 164.2145837720.

The spelling of 4428281 in words is "four million, four hundred twenty-eight thousand, two hundred eighty-one".