2705389138 has 8 divisors (see below), whose sum is σ = 4271667120. Its totient is φ = 1281500100.

The previous prime is 2705389133. The next prime is 2705389139. The reversal of 2705389138 is 8319835072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2705389133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35597188 + ... + 35597263.

It is an arithmetic number, because the mean of its divisors is an integer number (533958390).

Almost surely, 2^2705389138 is an apocalyptic number.

2705389138 is a deficient number, since it is larger than the sum of its proper divisors (1566277982).

2705389138 is a wasteful number, since it uses less digits than its factorization.

2705389138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71194472.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2705389138 is about 52013.3553810942. The cubic root of 2705389138 is about 1393.4024848479.

The spelling of 2705389138 in words is "two billion, seven hundred five million, three hundred eighty-nine thousand, one hundred thirty-eight".