2040213220 has 48 divisors (see below), whose sum is σ = 4458026160. Its totient is φ = 783351296.

The previous prime is 2040213211. The next prime is 2040213239. The reversal of 2040213220 is 223120402.

It can be written as a sum of positive squares in 8 ways, for example, as 439573156 + 1600640064 = 20966^2 + 40008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2040213194 and 2040213203.

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, 90174 + ... + 110506.

It is an arithmetic number, because the mean of its divisors is an integer number (92875545).

Almost surely, 2^2040213220 is an apocalyptic number.

2040213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2040213220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2229013080).

2040213220 is an abundant number, since it is smaller than the sum of its proper divisors (2417812940).

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

2040213220 is a wasteful number, since it uses less digits than its factorization.

2040213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20544 (or 20542 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2040213220 is about 45168.7194859451. The cubic root of 2040213220 is about 1268.3093257294.

Adding to 2040213220 its reverse (223120402), we get a palindrome (2263333622).

The spelling of 2040213220 in words is "two billion, forty million, two hundred thirteen thousand, two hundred twenty".