220885650 has 96 divisors (see below), whose sum is σ = 613800000. Its totient is φ = 58406400.

The previous prime is 220885627. The next prime is 220885661. The reversal of 220885650 is 56588022.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 176226 + ... + 177474.

It is an arithmetic number, because the mean of its divisors is an integer number (6393750).

Almost surely, 2^220885650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220885650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306900000).

220885650 is an abundant number, since it is smaller than the sum of its proper divisors (392914350).

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

220885650 is a wasteful number, since it uses less digits than its factorization.

220885650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 220885650 is about 14862.2222429891. Note that the first 4 decimals coincide. The cubic root of 220885650 is about 604.4900650425.

The spelling of 220885650 in words is "two hundred twenty million, eight hundred eighty-five thousand, six hundred fifty".