2217317240 has 32 divisors (see below), whose sum is σ = 5034744000. Its totient is φ = 878788224.

The previous prime is 2217317209. The next prime is 2217317279. The reversal of 2217317240 is 427137122.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 249920 + ... + 258639.

It is an arithmetic number, because the mean of its divisors is an integer number (157335750).

Almost surely, 2^2217317240 is an apocalyptic number.

2217317240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2217317240 is an abundant number, since it is smaller than the sum of its proper divisors (2817426760).

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

2217317240 is a wasteful number, since it uses less digits than its factorization.

2217317240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508679 (or 508675 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2217317240 is about 47088.3981464649. The cubic root of 2217317240 is about 1303.9950553089.

The spelling of 2217317240 in words is "two billion, two hundred seventeen million, three hundred seventeen thousand, two hundred forty".