2199390606 has 192 divisors, whose sum is σ = 5943974400. Its totient is φ = 573585408.

The previous prime is 2199390587. The next prime is 2199390607. The reversal of 2199390606 is 6060939912.

It is a happy number.

2199390606 is a `hidden beast` number, since 2 + 1 + 9 + 9 + 39 + 0 + 606 = 666.

It is a super-2 number, since 2×2199390606² = 9674638075522094472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199390607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15822885 + ... + 15823023.

It is an arithmetic number, because the mean of its divisors is an integer number (30958200).

Almost surely, 2^2199390606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2199390606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971987200).

2199390606 is an abundant number, since it is smaller than the sum of its proper divisors (3744583794).

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

2199390606 is a wasteful number, since it uses less digits than its factorization.

2199390606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 2199390606 is about 46897.6609864501. The cubic root of 2199390606 is about 1300.4713490005.

The spelling of 2199390606 in words is "two billion, one hundred ninety-nine million, three hundred ninety thousand, six hundred six".