2205819894 has 8 divisors (see below), whose sum is σ = 4411639800. Its totient is φ = 735273296.

The previous prime is 2205819871. The next prime is 2205819983. The reversal of 2205819894 is 4989185022.

It is a sphenic number, since it is the product of 3 distinct primes.

2205819894 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 183818319 + ... + 183818330.

It is an arithmetic number, because the mean of its divisors is an integer number (551454975).

Almost surely, 2^2205819894 is an apocalyptic number.

2205819894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2205819894 is a wasteful number, since it uses less digits than its factorization.

2205819894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367636654.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 2205819894 is about 46966.1569004746. The cubic root of 2205819894 is about 1301.7373013244.

The spelling of 2205819894 in words is "two billion, two hundred five million, eight hundred nineteen thousand, eight hundred ninety-four".