8221338236 has 6 divisors (see below), whose sum is σ = 14387341920. Its totient is φ = 4110669116.

The previous prime is 8221338221. The next prime is 8221338239. The reversal of 8221338236 is 6328331228.

It is a self number, because there is not a number n which added to its sum of digits gives 8221338236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221338239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027667276 + ... + 1027667283.

It is an arithmetic number, because the mean of its divisors is an integer number (2397890320).

Almost surely, 2^8221338236 is an apocalyptic number.

It is an amenable number.

8221338236 is a deficient number, since it is larger than the sum of its proper divisors (6166003684).

8221338236 is a wasteful number, since it uses less digits than its factorization.

8221338236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055334563 (or 2055334561 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 8221338236 is about 90671.5955302431. The cubic root of 8221338236 is about 2018.2773140846.

The spelling of 8221338236 in words is "eight billion, two hundred twenty-one million, three hundred thirty-eight thousand, two hundred thirty-six".