2728385222 has 4 divisors (see below), whose sum is σ = 4092577836. Its totient is φ = 1364192610.

The previous prime is 2728385201. The next prime is 2728385263. The reversal of 2728385222 is 2225838272.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2728385222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682096304 + ... + 682096307.

It is an arithmetic number, because the mean of its divisors is an integer number (1023144459).

Almost surely, 2^2728385222 is an apocalyptic number.

2728385222 is a deficient number, since it is larger than the sum of its proper divisors (1364192614).

2728385222 is a wasteful number, since it uses less digits than its factorization.

2728385222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364192613.

The product of its digits is 215040, while the sum is 41.

The square root of 2728385222 is about 52233.9470268139. The cubic root of 2728385222 is about 1397.3393723279.

The spelling of 2728385222 in words is "two billion, seven hundred twenty-eight million, three hundred eighty-five thousand, two hundred twenty-two".