4223628 has 36 divisors (see below), whose sum is σ = 11142768. Its totient is φ = 1346400.

The previous prime is 4223627. The next prime is 4223629. The reversal of 4223628 is 8263224.

It is an interprime number because it is at equal distance from previous prime (4223627) and next prime (4223629).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1723 + ... + 3378.

Almost surely, 2^4223628 is an apocalyptic number.

It is an amenable number.

4223628 is an abundant number, since it is smaller than the sum of its proper divisors (6919140).

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

4223628 is a wasteful number, since it uses less digits than its factorization.

4223628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134 (or 5129 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 4223628 is about 2055.1467100915. The cubic root of 4223628 is about 161.6448552901.

It can be divided in two parts, 4223 and 628, that added together give a triangular number (4851 = T₉₈).

The spelling of 4223628 in words is "four million, two hundred twenty-three thousand, six hundred twenty-eight".