2218312352 has 12 divisors (see below), whose sum is σ = 4367302506. Its totient is φ = 1109156160.

The previous prime is 2218312333. The next prime is 2218312387. The reversal of 2218312352 is 2532138122.

It can be written as a sum of positive squares in only one way, i.e., 1375223056 + 843089296 = 37084^2 + 29036^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34661099 + ... + 34661162.

Almost surely, 2^2218312352 is an apocalyptic number.

It is an amenable number.

2218312352 is a deficient number, since it is larger than the sum of its proper divisors (2148990154).

2218312352 is an equidigital number, since it uses as much as digits as its factorization.

2218312352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69322271 (or 69322263 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 2218312352 is about 47098.9633856203. The cubic root of 2218312352 is about 1304.1900998778.

The spelling of 2218312352 in words is "two billion, two hundred eighteen million, three hundred twelve thousand, three hundred fifty-two".