2205423816 has 64 divisors (see below), whose sum is σ = 5812732800. Its totient is φ = 695912448.

The previous prime is 2205423769. The next prime is 2205423833. The reversal of 2205423816 is 6183245022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32950 + ... + 74138.

It is an arithmetic number, because the mean of its divisors is an integer number (90823950).

Almost surely, 2^2205423816 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 2205423816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906366400).

2205423816 is an abundant number, since it is smaller than the sum of its proper divisors (3607308984).

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

2205423816 is a wasteful number, since it uses less digits than its factorization.

2205423816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41318 (or 41314 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 2205423816 is about 46961.9400791748. The cubic root of 2205423816 is about 1301.6593831511.

Adding to 2205423816 its reverse (6183245022), we get a palindrome (8388668838).

The spelling of 2205423816 in words is "two billion, two hundred five million, four hundred twenty-three thousand, eight hundred sixteen".