2005012736 has 36 divisors (see below), whose sum is σ = 4058599104. Its totient is φ = 988377600.

The previous prime is 2005012733. The next prime is 2005012769. The reversal of 2005012736 is 6372105002.

It is not an unprimeable number, because it can be changed into a prime (2005012733) 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, 36980 + ... + 73331.

It is an arithmetic number, because the mean of its divisors is an integer number (112738864).

Almost surely, 2^2005012736 is an apocalyptic number.

It is an amenable number.

2005012736 is an abundant number, since it is smaller than the sum of its proper divisors (2053586368).

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

2005012736 is an equidigital number, since it uses as much as digits as its factorization.

2005012736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110398 (or 110384 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2005012736 is about 44777.3685694012. The cubic root of 2005012736 is about 1260.9727803098.

Adding to 2005012736 its reverse (6372105002), we get a palindrome (8377117738).

The spelling of 2005012736 in words is "two billion, five million, twelve thousand, seven hundred thirty-six".