2243220520 has 32 divisors (see below), whose sum is σ = 5096257920. Its totient is φ = 888575040.

The previous prime is 2243220509. The next prime is 2243220523. The reversal of 2243220520 is 250223422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2243220491 and 2243220500.

It is not an unprimeable number, because it can be changed into a prime (2243220523) 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 7 ways as a sum of consecutive naturals, for example, 268116 + ... + 276355.

It is an arithmetic number, because the mean of its divisors is an integer number (159258060).

Almost surely, 2^2243220520 is an apocalyptic number.

2243220520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243220520 is an abundant number, since it is smaller than the sum of its proper divisors (2853037400).

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

2243220520 is a wasteful number, since it uses less digits than its factorization.

2243220520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544585 (or 544581 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2243220520 is about 47362.6489968625. The cubic root of 2243220520 is about 1309.0532794260.

Adding to 2243220520 its reverse (250223422), we get a palindrome (2493443942).

The spelling of 2243220520 in words is "two billion, two hundred forty-three million, two hundred twenty thousand, five hundred twenty".