641319108 has 48 divisors (see below), whose sum is σ = 1573440960. Its totient is φ = 203011200.

The previous prime is 641319083. The next prime is 641319127. The reversal of 641319108 is 801913146.

It is a super-2 number, since 2×641319108² = 822580396571831328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6123 + ... + 36333.

It is an arithmetic number, because the mean of its divisors is an integer number (32780020).

Almost surely, 2^641319108 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 641319108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786720480).

641319108 is an abundant number, since it is smaller than the sum of its proper divisors (932121852).

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

641319108 is a wasteful number, since it uses less digits than its factorization.

641319108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30308 (or 30306 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 641319108 is about 25324.2790223137. The cubic root of 641319108 is about 862.3655388794.

The spelling of 641319108 in words is "six hundred forty-one million, three hundred nineteen thousand, one hundred eight".