8311420208 has 160 divisors (see below), whose sum is σ = 20778003456. Its totient is φ = 3130389504.

The previous prime is 8311420177. The next prime is 8311420279. The reversal of 8311420208 is 8020241138.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9476666 + ... + 9477542.

Almost surely, 2^8311420208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8311420208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10389001728).

8311420208 is an abundant number, since it is smaller than the sum of its proper divisors (12466583248).

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

8311420208 is a wasteful number, since it uses less digits than its factorization.

8311420208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8311420208 is about 91166.9907806548. The cubic root of 8311420208 is about 2025.6220378725.

The spelling of 8311420208 in words is "eight billion, three hundred eleven million, four hundred twenty thousand, two hundred eight".