2005012738 has 8 divisors (see below), whose sum is σ = 3007807488. Its totient is φ = 1002410244.

The previous prime is 2005012733. The next prime is 2005012769. The reversal of 2005012738 is 8372105002.

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 (2005012733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18306 + ... + 65917.

It is an arithmetic number, because the mean of its divisors is an integer number (375975936).

Almost surely, 2^2005012738 is an apocalyptic number.

2005012738 is a deficient number, since it is larger than the sum of its proper divisors (1002794750).

2005012738 is a wasteful number, since it uses less digits than its factorization.

2005012738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96128.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2005012738 is about 44777.3685917339. The cubic root of 2005012738 is about 1260.9727807291.

The spelling of 2005012738 in words is "two billion, five million, twelve thousand, seven hundred thirty-eight".