2638746112 has 40 divisors (see below), whose sum is σ = 5281515756. Its totient is φ = 1317076992.

The previous prime is 2638746109. The next prime is 2638746119. The reversal of 2638746112 is 2116478362.

It can be written as a sum of positive squares in 2 ways, for example, as 2506404096 + 132342016 = 50064^2 + 11504^2 .

It is not an unprimeable number, because it can be changed into a prime (2638746119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311728 + ... + 320080.

Almost surely, 2^2638746112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2638746112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2640757878).

2638746112 is an abundant number, since it is smaller than the sum of its proper divisors (2642769644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2638746112 is an frugal number, since it uses more digits than its factorization.

2638746112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988 (or 8972 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 2638746112 is about 51368.7269844212. The cubic root of 2638746112 is about 1381.8658008269.

The spelling of 2638746112 in words is "two billion, six hundred thirty-eight million, seven hundred forty-six thousand, one hundred twelve".