2008755138 has 16 divisors (see below), whose sum is σ = 4326549696. Its totient is φ = 618078480.

The previous prime is 2008755103. The next prime is 2008755157. The reversal of 2008755138 is 8315578002.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 2008755096 and 2008755105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12876558 + ... + 12876713.

It is an arithmetic number, because the mean of its divisors is an integer number (270409356).

Almost surely, 2^2008755138 is an apocalyptic number.

2008755138 is an abundant number, since it is smaller than the sum of its proper divisors (2317794558).

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

2008755138 is a wasteful number, since it uses less digits than its factorization.

2008755138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25753289.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 2008755138 is about 44819.1380773883. The cubic root of 2008755138 is about 1261.7568375096.

The spelling of 2008755138 in words is "two billion, eight million, seven hundred fifty-five thousand, one hundred thirty-eight".