2198214838 has 4 divisors (see below), whose sum is σ = 3297322260. Its totient is φ = 1099107418.

The previous prime is 2198214829. The next prime is 2198214839. The reversal of 2198214838 is 8384128912.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198214839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549553708 + ... + 549553711.

It is an arithmetic number, because the mean of its divisors is an integer number (824330565).

Almost surely, 2^2198214838 is an apocalyptic number.

2198214838 is a deficient number, since it is larger than the sum of its proper divisors (1099107422).

2198214838 is a wasteful number, since it uses less digits than its factorization.

2198214838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099107421.

The product of its digits is 221184, while the sum is 46.

The square root of 2198214838 is about 46885.1238454160. The cubic root of 2198214838 is about 1300.2395688664.

The spelling of 2198214838 in words is "two billion, one hundred ninety-eight million, two hundred fourteen thousand, eight hundred thirty-eight".