2185204312 has 32 divisors (see below), whose sum is σ = 4231347120. Its totient is φ = 1057173120.

The previous prime is 2185204303. The next prime is 2185204331. The reversal of 2185204312 is 2134025812.

It is a congruent number.

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, 33183 + ... + 73969.

Almost surely, 2^2185204312 is an apocalyptic number.

It is an amenable number.

2185204312 is a deficient number, since it is larger than the sum of its proper divisors (2046142808).

2185204312 is a wasteful number, since it uses less digits than its factorization.

2185204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41011 (or 41007 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2185204312 is about 46746.1689553272. The cubic root of 2185204312 is about 1297.6692580800.

The spelling of 2185204312 in words is "two billion, one hundred eighty-five million, two hundred four thousand, three hundred twelve".