4256028 has 36 divisors (see below), whose sum is σ = 12295920. Its totient is φ = 1215936.

The previous prime is 4256009. The next prime is 4256029. The reversal of 4256028 is 8206524.

4256028 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×4256028² = 36227548673568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4255992 and 4256010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256029) 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, 8193 + ... + 8696.

Almost surely, 2^4256028 is an apocalyptic number.

It is an amenable number.

4256028 is an abundant number, since it is smaller than the sum of its proper divisors (8039892).

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

4256028 is a wasteful number, since it uses less digits than its factorization.

4256028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16906 (or 16901 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4256028 is about 2063.0142995142. The cubic root of 4256028 is about 162.0571357678.

The spelling of 4256028 in words is "four million, two hundred fifty-six thousand, twenty-eight".