4420428 has 12 divisors (see below), whose sum is σ = 10314360. Its totient is φ = 1473472.

The previous prime is 4420421. The next prime is 4420453. The reversal of 4420428 is 8240244.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4420398 and 4420407.

It is not an unprimeable number, because it can be changed into a prime (4420421) 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, 184173 + ... + 184196.

It is an arithmetic number, because the mean of its divisors is an integer number (859530).

Almost surely, 2^4420428 is an apocalyptic number.

It is an amenable number.

4420428 is an abundant number, since it is smaller than the sum of its proper divisors (5893932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4420428 is a wasteful number, since it uses less digits than its factorization.

4420428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368376 (or 368374 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4420428 is about 2102.4813911186. The cubic root of 4420428 is about 164.1174550231.

The spelling of 4420428 in words is "four million, four hundred twenty thousand, four hundred twenty-eight".