3926636844 has 24 divisors (see below), whose sum is σ = 9866934000. Its totient is φ = 1208195904.

The previous prime is 3926636821. The next prime is 3926636849. The reversal of 3926636844 is 4486366293.

3926636844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3926636849) 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, 12585219 + ... + 12585530.

It is an arithmetic number, because the mean of its divisors is an integer number (411122250).

Almost surely, 2^3926636844 is an apocalyptic number.

It is an amenable number.

3926636844 is an abundant number, since it is smaller than the sum of its proper divisors (5940297156).

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

3926636844 is a wasteful number, since it uses less digits than its factorization.

3926636844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25170769 (or 25170767 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 51.

The square root of 3926636844 is about 62662.8825063131. The cubic root of 3926636844 is about 1577.6363798866.

The spelling of 3926636844 in words is "three billion, nine hundred twenty-six million, six hundred thirty-six thousand, eight hundred forty-four".