4428772 has 12 divisors (see below), whose sum is σ = 8206380. Its totient is φ = 2084096.

The previous prime is 4428751. The next prime is 4428773. The reversal of 4428772 is 2778244.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 2643876 = 1336^2 + 1626^2 .

It is a super-2 number, since 2×4428772² = 39228042855968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (4428773) 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, 32497 + ... + 32632.

It is an arithmetic number, because the mean of its divisors is an integer number (683865).

Almost surely, 2^4428772 is an apocalyptic number.

It is an amenable number.

4428772 is a deficient number, since it is larger than the sum of its proper divisors (3777608).

4428772 is a wasteful number, since it uses less digits than its factorization.

4428772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65150 (or 65148 counting only the distinct ones).

The product of its digits is 25088, while the sum is 34.

The square root of 4428772 is about 2104.4647775622. The cubic root of 4428772 is about 164.2206528223.

The spelling of 4428772 in words is "four million, four hundred twenty-eight thousand, seven hundred seventy-two".