8122443636 has 12 divisors (see below), whose sum is σ = 18952368512. Its totient is φ = 2707481208.

The previous prime is 8122443631. The next prime is 8122443737. The reversal of 8122443636 is 6363442218.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 8122443594 and 8122443603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8122443631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338435140 + ... + 338435163.

Almost surely, 2^8122443636 is an apocalyptic number.

It is an amenable number.

8122443636 is an abundant number, since it is smaller than the sum of its proper divisors (10829924876).

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

8122443636 is a wasteful number, since it uses less digits than its factorization.

8122443636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676870310 (or 676870308 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 8122443636 is about 90124.6006149264. The cubic root of 8122443636 is about 2010.1520174127.

The spelling of 8122443636 in words is "eight billion, one hundred twenty-two million, four hundred forty-three thousand, six hundred thirty-six".