2217860242 has 32 divisors (see below), whose sum is σ = 3631219200. Its totient is φ = 1009819008.

The previous prime is 2217860237. The next prime is 2217860263. The reversal of 2217860242 is 2420687122.

It is a junction number, because it is equal to n+sod(n) for n = 2217860198 and 2217860207.

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 15 ways as a sum of consecutive naturals, for example, 1403809 + ... + 1405387.

It is an arithmetic number, because the mean of its divisors is an integer number (113475600).

Almost surely, 2^2217860242 is an apocalyptic number.

2217860242 is a deficient number, since it is larger than the sum of its proper divisors (1413358958).

2217860242 is a wasteful number, since it uses less digits than its factorization.

2217860242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 2217860242 is about 47094.1635662000. The cubic root of 2217860242 is about 1304.1014923608.

The spelling of 2217860242 in words is "two billion, two hundred seventeen million, eight hundred sixty thousand, two hundred forty-two".