2208826660 has 96 divisors (see below), whose sum is σ = 5034960000. Its totient is φ = 810878976.

The previous prime is 2208826639. The next prime is 2208826667. The reversal of 2208826660 is 666288022.

It is not an unprimeable number, because it can be changed into a prime (2208826667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2988571 + ... + 2989309.

It is an arithmetic number, because the mean of its divisors is an integer number (52447500).

Almost surely, 2^2208826660 is an apocalyptic number.

2208826660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2208826660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2517480000).

2208826660 is an abundant number, since it is smaller than the sum of its proper divisors (2826133340).

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

2208826660 is a wasteful number, since it uses less digits than its factorization.

2208826660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 2208826660 is about 46998.1559212699. The cubic root of 2208826660 is about 1302.3285013595.

The spelling of 2208826660 in words is "two billion, two hundred eight million, eight hundred twenty-six thousand, six hundred sixty".