2005403012 has 24 divisors (see below), whose sum is σ = 3638409600. Its totient is φ = 966008736.

The previous prime is 2005402969. The next prime is 2005403033. The reversal of 2005403012 is 2103045002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35039 + ... + 72377.

It is an arithmetic number, because the mean of its divisors is an integer number (151600400).

Almost surely, 2^2005403012 is an apocalyptic number.

It is an amenable number.

2005403012 is a deficient number, since it is larger than the sum of its proper divisors (1633006588).

2005403012 is a wasteful number, since it uses less digits than its factorization.

2005403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37835 (or 37833 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2005403012 is about 44781.7263177739. The cubic root of 2005403012 is about 1261.0545911759.

Adding to 2005403012 its reverse (2103045002), we get a palindrome (4108448014).

The spelling of 2005403012 in words is "two billion, five million, four hundred three thousand, twelve".