2204145450 has 144 divisors (see below), whose sum is σ = 6498568440. Its totient is φ = 532247040.

The previous prime is 2204145439. The next prime is 2204145509. The reversal of 2204145450 is 545414022.

2204145450 is a `hidden beast` number, since 2 + 204 + 1 + 4 + 5 + 450 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 1814409 + 2202331041 = 1347^2 + 46929^2 .

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 306496 + ... + 313604.

Almost surely, 2^2204145450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2204145450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3249284220).

2204145450 is an abundant number, since it is smaller than the sum of its proper divisors (4294422990).

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

2204145450 is a wasteful number, since it uses less digits than its factorization.

2204145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193 (or 7185 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2204145450 is about 46948.3274462467. The cubic root of 2204145450 is about 1301.4078338117.

Adding to 2204145450 its reverse (545414022), we get a palindrome (2749559472).

The spelling of 2204145450 in words is "two billion, two hundred four million, one hundred forty-five thousand, four hundred fifty".