2045200220 has 36 divisors (see below), whose sum is σ = 4996134360. Its totient is φ = 701211168.

The previous prime is 2045200217. The next prime is 2045200237. The reversal of 2045200220 is 220025402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1042490 + ... + 1044449.

It is an arithmetic number, because the mean of its divisors is an integer number (138781510).

Almost surely, 2^2045200220 is an apocalyptic number.

2045200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045200220 is an abundant number, since it is smaller than the sum of its proper divisors (2950934140).

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

2045200220 is a wasteful number, since it uses less digits than its factorization.

2045200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086962 (or 2086953 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2045200220 is about 45223.8899255692. The cubic root of 2045200220 is about 1269.3418831724.

Adding to 2045200220 its reverse (220025402), we get a palindrome (2265225622).

The spelling of 2045200220 in words is "two billion, forty-five million, two hundred thousand, two hundred twenty".