2217850880 has 96 divisors (see below), whose sum is σ = 6081959520. Its totient is φ = 760381440.

The previous prime is 2217850853. The next prime is 2217850883. The reversal of 2217850880 is 880587122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217850883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56210 + ... + 87150.

It is an arithmetic number, because the mean of its divisors is an integer number (63353745).

Almost surely, 2^2217850880 is an apocalyptic number.

2217850880 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 2217850880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3040979760).

2217850880 is an abundant number, since it is smaller than the sum of its proper divisors (3864108640).

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

2217850880 is an equidigital number, since it uses as much as digits as its factorization.

2217850880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30975 (or 30955 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 2217850880 is about 47094.0641694896. The cubic root of 2217850880 is about 1304.0996574067.

The spelling of 2217850880 in words is "two billion, two hundred seventeen million, eight hundred fifty thousand, eight hundred eighty".