220250000 has 70 divisors (see below), whose sum is σ = 534016602. Its totient is φ = 88000000.

The previous prime is 220249963. The next prime is 220250003. The reversal of 220250000 is 52022.

220250000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 210714256 + 9535744 = 14516^2 + 3088^2 .

It is a sliding number, since 220250000 = 64000000 + 156250000 and 1/64000000 + 1/156250000 = 0.0000000220250000.

It is not an unprimeable number, because it can be changed into a prime (220250003) 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 13 ways as a sum of consecutive naturals, for example, 249560 + ... + 250440.

Almost surely, 2^220250000 is an apocalyptic number.

220250000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267008301).

220250000 is an abundant number, since it is smaller than the sum of its proper divisors (313766602).

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

220250000 is an frugal number, since it uses more digits than its factorization.

220250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 220250000 is about 14840.8220796558. The cubic root of 220250000 is about 603.9096541915.

The spelling of 220250000 in words is "two hundred twenty million, two hundred fifty thousand".