2217880690 has 32 divisors (see below), whose sum is σ = 4253005440. Its totient is φ = 829833984.

The previous prime is 2217880667. The next prime is 2217880711. The reversal of 2217880690 is 960887122.

It is a super-2 number, since 2×2217880690² = 9837989510149752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12310 + ... + 67729.

It is an arithmetic number, because the mean of its divisors is an integer number (132906420).

Almost surely, 2^2217880690 is an apocalyptic number.

2217880690 is a deficient number, since it is larger than the sum of its proper divisors (2035124750).

2217880690 is a wasteful number, since it uses less digits than its factorization.

2217880690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80226.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 2217880690 is about 47094.3806626651. The cubic root of 2217880690 is about 1304.1055001555.

The spelling of 2217880690 in words is "two billion, two hundred seventeen million, eight hundred eighty thousand, six hundred ninety".