3618900220 has 48 divisors (see below), whose sum is σ = 8189546400. Its totient is φ = 1335350016.

The previous prime is 3618900203. The next prime is 3618900221. The reversal of 3618900220 is 220098163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618900221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 517306 + ... + 524254.

It is an arithmetic number, because the mean of its divisors is an integer number (170615550).

Almost surely, 2^3618900220 is an apocalyptic number.

It is an amenable number.

3618900220 is an abundant number, since it is smaller than the sum of its proper divisors (4570646180).

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

3618900220 is a wasteful number, since it uses less digits than its factorization.

3618900220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974 (or 8972 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3618900220 is about 60157.2956506524. The cubic root of 3618900220 is about 1535.2962989085.

Adding to 3618900220 its reverse (220098163), we get a palindrome (3838998383).

The spelling of 3618900220 in words is "three billion, six hundred eighteen million, nine hundred thousand, two hundred twenty".