2638322318 has 16 divisors (see below), whose sum is σ = 4131426816. Its totient is φ = 1261232280.

The previous prime is 2638322317. The next prime is 2638322339. The reversal of 2638322318 is 8132238362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638322317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99623 + ... + 123293.

It is an arithmetic number, because the mean of its divisors is an integer number (258214176).

Almost surely, 2^2638322318 is an apocalyptic number.

2638322318 is a deficient number, since it is larger than the sum of its proper divisors (1493104498).

2638322318 is a wasteful number, since it uses less digits than its factorization.

2638322318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26119.

The product of its digits is 82944, while the sum is 38.

The square root of 2638322318 is about 51364.6017992936. The cubic root of 2638322318 is about 1381.7918189981.

The spelling of 2638322318 in words is "two billion, six hundred thirty-eight million, three hundred twenty-two thousand, three hundred eighteen".