2704081638 has 16 divisors (see below), whose sum is σ = 5456024496. Its totient is φ = 893383680.

The previous prime is 2704081621. The next prime is 2704081649. The reversal of 2704081638 is 8361804072.

It is a junction number, because it is equal to n+sod(n) for n = 2704081596 and 2704081605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993483 + ... + 1994838.

It is an arithmetic number, because the mean of its divisors is an integer number (341001531).

Almost surely, 2^2704081638 is an apocalyptic number.

2704081638 is an abundant number, since it is smaller than the sum of its proper divisors (2751942858).

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

2704081638 is a wasteful number, since it uses less digits than its factorization.

2704081638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988439.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2704081638 is about 52000.7849748444. The cubic root of 2704081638 is about 1393.1779740369.

The spelling of 2704081638 in words is "two billion, seven hundred four million, eighty-one thousand, six hundred thirty-eight".