2622145220 has 12 divisors (see below), whose sum is σ = 5506505004. Its totient is φ = 1048858080.

The previous prime is 2622145189. The next prime is 2622145223. The reversal of 2622145220 is 225412262.

It can be written as a sum of positive squares in 2 ways, for example, as 2085018244 + 537126976 = 45662^2 + 23176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2622145220.

It is not an unprimeable number, because it can be changed into a prime (2622145223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65553611 + ... + 65553650.

It is an arithmetic number, because the mean of its divisors is an integer number (458875417).

Almost surely, 2^2622145220 is an apocalyptic number.

2622145220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2622145220 is an abundant number, since it is smaller than the sum of its proper divisors (2884359784).

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

2622145220 is a wasteful number, since it uses less digits than its factorization.

2622145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131107270 (or 131107268 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2622145220 is about 51206.8864509452. The cubic root of 2622145220 is about 1378.9618355891.

Adding to 2622145220 its reverse (225412262), we get a palindrome (2847557482).

The spelling of 2622145220 in words is "two billion, six hundred twenty-two million, one hundred forty-five thousand, two hundred twenty".