2005512740 has 48 divisors (see below), whose sum is σ = 5250801024. Its totient is φ = 625094400.

The previous prime is 2005512731. The next prime is 2005512779. The reversal of 2005512740 is 472155002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649601 + ... + 652680.

It is an arithmetic number, because the mean of its divisors is an integer number (109391688).

Almost surely, 2^2005512740 is an apocalyptic number.

2005512740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005512740 is an abundant number, since it is smaller than the sum of its proper divisors (3245288284).

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

2005512740 is a wasteful number, since it uses less digits than its factorization.

2005512740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302308 (or 1302306 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 2005512740 is about 44782.9514436018. The cubic root of 2005512740 is about 1261.0775907881.

Adding to 2005512740 its reverse (472155002), we get a palindrome (2477667742).

The spelling of 2005512740 in words is "two billion, five million, five hundred twelve thousand, seven hundred forty".