2196669090 has 256 divisors, whose sum is σ = 6881034240. Its totient is φ = 439084800.

The previous prime is 2196669067. The next prime is 2196669091. The reversal of 2196669090 is 909666912.

It is a happy number.

It is a super-2 number, since 2×2196669090² = 9650710181922856200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2196669091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8105655 + ... + 8105925.

It is an arithmetic number, because the mean of its divisors is an integer number (26879040).

Almost surely, 2^2196669090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2196669090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440517120).

2196669090 is an abundant number, since it is smaller than the sum of its proper divisors (4684365150).

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

2196669090 is a wasteful number, since it uses less digits than its factorization.

2196669090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 2196669090 is about 46868.6365280664. The cubic root of 2196669090 is about 1299.9347284783.

The spelling of 2196669090 in words is "two billion, one hundred ninety-six million, six hundred sixty-nine thousand, ninety".