900200220 has 48 divisors (see below), whose sum is σ = 2630154240. Its totient is φ = 229615936.

The previous prime is 900200209. The next prime is 900200261. The reversal of 900200220 is 22002009.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 900200220.

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 15 ways as a sum of consecutive naturals, for example, 324780 + ... + 327539.

It is an arithmetic number, because the mean of its divisors is an integer number (54794880).

Almost surely, 2^900200220 is an apocalyptic number.

It is an amenable number.

900200220 is an abundant number, since it is smaller than the sum of its proper divisors (1729954020).

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

900200220 is a wasteful number, since it uses less digits than its factorization.

900200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652354 (or 652352 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 900200220 is about 30003.3368144278. The cubic root of 900200220 is about 965.5609756987.

Adding to 900200220 its reverse (22002009), we get a palindrome (922202229).

The spelling of 900200220 in words is "nine hundred million, two hundred thousand, two hundred twenty".