2198312 has 16 divisors (see below), whose sum is σ = 4161300. Its totient is φ = 1088640.

The previous prime is 2198309. The next prime is 2198327. The reversal of 2198312 is 2138912.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 164836 = 1426^2 + 406^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 2132.

2^2198312 is an apocalyptic number.

It is an amenable number.

2198312 is a deficient number, since it is larger than the sum of its proper divisors (1962988).

2198312 is a wasteful number, since it uses less digits than its factorization.

2198312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636 (or 2632 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 2198312 is about 1482.6705635440. The cubic root of 2198312 is about 130.0258725625.

The spelling of 2198312 in words is "two million, one hundred ninety-eight thousand, three hundred twelve".