2205000720 has 120 divisors (see below), whose sum is σ = 7974786456. Its totient is φ = 542767104.

The previous prime is 2205000713. The next prime is 2205000739. The reversal of 2205000720 is 270005022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10265616 + 2194735104 = 3204^2 + 46848^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2205000693 and 2205000702.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108429 + ... + 127148.

Almost surely, 2^2205000720 is an apocalyptic number.

2205000720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205000720 is an abundant number, since it is smaller than the sum of its proper divisors (5769785736).

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

2205000720 is a wasteful number, since it uses less digits than its factorization.

2205000720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235609 (or 235600 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2205000720 is about 46957.4351940137. The cubic root of 2205000720 is about 1301.5761395744.

Adding to 2205000720 its reverse (270005022), we get a palindrome (2475005742).

The spelling of 2205000720 in words is "two billion, two hundred five million, seven hundred twenty", and thus it is an aban number.