2217730506 has 16 divisors (see below), whose sum is σ = 4438324800. Its totient is φ = 738766208.

The previous prime is 2217730451. The next prime is 2217730517. The reversal of 2217730506 is 6050377122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109191 + ... + 127898.

It is an arithmetic number, because the mean of its divisors is an integer number (277395300).

Almost surely, 2^2217730506 is an apocalyptic number.

2217730506 is an abundant number, since it is smaller than the sum of its proper divisors (2220594294).

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

2217730506 is a wasteful number, since it uses less digits than its factorization.

2217730506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238653.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 2217730506 is about 47092.7861354582. The cubic root of 2217730506 is about 1304.0760636154.

The spelling of 2217730506 in words is "two billion, two hundred seventeen million, seven hundred thirty thousand, five hundred six".