2209890108 has 12 divisors (see below), whose sum is σ = 5156410280. Its totient is φ = 736630032.

The previous prime is 2209890107. The next prime is 2209890113. The reversal of 2209890108 is 8010989022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2209890108² = 9767228578872503328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209890107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92078743 + ... + 92078766.

Almost surely, 2^2209890108 is an apocalyptic number.

It is an amenable number.

2209890108 is an abundant number, since it is smaller than the sum of its proper divisors (2946520172).

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

2209890108 is a wasteful number, since it uses less digits than its factorization.

2209890108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184157516 (or 184157514 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 2209890108 is about 47009.4682803369. The cubic root of 2209890108 is about 1302.5374714974.

The spelling of 2209890108 in words is "two billion, two hundred nine million, eight hundred ninety thousand, one hundred eight".