4256844636 has 24 divisors (see below), whose sum is σ = 10835604864. Its totient is φ = 1289952880.

The previous prime is 4256844617. The next prime is 4256844637. The reversal of 4256844636 is 6364486524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256844637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16124280 + ... + 16124543.

It is an arithmetic number, because the mean of its divisors is an integer number (451483536).

Almost surely, 2^4256844636 is an apocalyptic number.

It is an amenable number.

4256844636 is an abundant number, since it is smaller than the sum of its proper divisors (6578760228).

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

4256844636 is a wasteful number, since it uses less digits than its factorization.

4256844636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32248841 (or 32248839 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 48.

The square root of 4256844636 is about 65244.4988945428. The cubic root of 4256844636 is about 1620.6750014410.

The spelling of 4256844636 in words is "four billion, two hundred fifty-six million, eight hundred forty-four thousand, six hundred thirty-six".