4422628 has 12 divisors (see below), whose sum is σ = 8845312. Its totient is φ = 1895400.

The previous prime is 4422623. The next prime is 4422643. The reversal of 4422628 is 8262244.

4422628 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 157951 = 4422628 / (4 + 4 + 2 + 2 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 4422596 and 4422605.

It is not an unprimeable number, because it can be changed into a prime (4422623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78948 + ... + 79003.

Almost surely, 2^4422628 is an apocalyptic number.

It is an amenable number.

4422628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4422628 is a wasteful number, since it uses less digits than its factorization.

4422628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157962 (or 157960 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 4422628 is about 2103.0045173513. The cubic root of 4422628 is about 164.1446770115.

It can be divided in two parts, 442262 and 8, that added together give a triangular number (442270 = T₉₄₀).

The spelling of 4422628 in words is "four million, four hundred twenty-two thousand, six hundred twenty-eight".