4228736 has 16 divisors (see below), whose sum is σ = 8424690. Its totient is φ = 2114304.

The previous prime is 4228727. The next prime is 4228739. The reversal of 4228736 is 6378224.

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 1600 = 2056^2 + 40^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 4¹¹ + 2³ + 2¹⁵ + 8 + 7³ + 3² + 6⁴ .

It is not an unprimeable number, because it can be changed into a prime (4228739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16391 + ... + 16646.

Almost surely, 2^4228736 is an apocalyptic number.

It is an amenable number.

4228736 is a deficient number, since it is larger than the sum of its proper divisors (4195954).

4228736 is an equidigital number, since it uses as much as digits as its factorization.

4228736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33051 (or 33039 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 4228736 is about 2056.3890682456. The cubic root of 4228736 is about 161.7099927571.

The spelling of 4228736 in words is "four million, two hundred twenty-eight thousand, seven hundred thirty-six".