8218833408 has 60 divisors (see below), whose sum is σ = 23720122998. Its totient is φ = 2739609600.

The previous prime is 8218833361. The next prime is 8218833451. The reversal of 8218833408 is 8043388128.

It can be written as a sum of positive squares in only one way, i.e., 5177090304 + 3041743104 = 71952^2 + 55152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 887193 + ... + 896408.

Almost surely, 2^8218833408 is an apocalyptic number.

It is an amenable number.

8218833408 is an abundant number, since it is smaller than the sum of its proper divisors (15501289590).

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

8218833408 is a wasteful number, since it uses less digits than its factorization.

8218833408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783625 (or 1783606 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 8218833408 is about 90657.7818391780. The cubic root of 8218833408 is about 2018.0723210576.

The spelling of 8218833408 in words is "eight billion, two hundred eighteen million, eight hundred thirty-three thousand, four hundred eight".