2194569216 has 288 divisors, whose sum is σ = 7374538080. Its totient is φ = 615776256.

The previous prime is 2194569193. The next prime is 2194569241. The reversal of 2194569216 is 6129654912.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×2194569216² = 9632268087629709312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9418636 + ... + 9418868.

It is an arithmetic number, because the mean of its divisors is an integer number (25606035).

Almost surely, 2^2194569216 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 2194569216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3687269040).

2194569216 is an abundant number, since it is smaller than the sum of its proper divisors (5179968864).

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

2194569216 is a wasteful number, since it uses less digits than its factorization.

2194569216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 318 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 2194569216 is about 46846.2294747400. The cubic root of 2194569216 is about 1299.5203784944.

The spelling of 2194569216 in words is "two billion, one hundred ninety-four million, five hundred sixty-nine thousand, two hundred sixteen".