4256628 has 24 divisors (see below), whose sum is σ = 10201632. Its totient is φ = 1380384.

The previous prime is 4256617. The next prime is 4256639. The reversal of 4256628 is 8266524.

It is an interprime number because it is at equal distance from previous prime (4256617) and next prime (4256639).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4350 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (425068).

Almost surely, 2^4256628 is an apocalyptic number.

It is an amenable number.

4256628 is an abundant number, since it is smaller than the sum of its proper divisors (5945004).

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

4256628 is a wasteful number, since it uses less digits than its factorization.

4256628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9631 (or 9629 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 4256628 is about 2063.1597126737. The cubic root of 4256628 is about 162.0647508267.

It can be divided in two parts, 4256 and 628, that added together give a palindrome (4884).

The spelling of 4256628 in words is "four million, two hundred fifty-six thousand, six hundred twenty-eight".