2205621036 has 48 divisors (see below), whose sum is σ = 5722174080. Its totient is φ = 734706000.

The previous prime is 2205621007. The next prime is 2205621037. The reversal of 2205621036 is 6301265022.

2205621036 is a `hidden beast` number, since 2 + 2 + 0 + 5 + 621 + 0 + 36 = 666.

2205621036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2205621037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173911 + ... + 186161.

It is an arithmetic number, because the mean of its divisors is an integer number (119211960).

Almost surely, 2^2205621036 is an apocalyptic number.

It is an amenable number.

2205621036 is an abundant number, since it is smaller than the sum of its proper divisors (3516553044).

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

2205621036 is a wasteful number, since it uses less digits than its factorization.

2205621036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931 (or 13923 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2205621036 is about 46964.0398177159. The cubic root of 2205621036 is about 1301.6981822865.

Adding to 2205621036 its reverse (6301265022), we get a palindrome (8506886058).

The spelling of 2205621036 in words is "two billion, two hundred five million, six hundred twenty-one thousand, thirty-six".