4005243512 has 16 divisors (see below), whose sum is σ = 7510612200. Its totient is φ = 2002413600.

The previous prime is 4005243481. The next prime is 4005243523. The reversal of 4005243512 is 2153425004.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 82262 + ... + 121562.

Almost surely, 2^4005243512 is an apocalyptic number.

It is an amenable number.

4005243512 is a deficient number, since it is larger than the sum of its proper divisors (3505368688).

4005243512 is a wasteful number, since it uses less digits than its factorization.

4005243512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52046 (or 52042 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4005243512 is about 63286.9932292568. The cubic root of 4005243512 is about 1588.0943788062.

Adding to 4005243512 its reverse (2153425004), we get a palindrome (6158668516).

The spelling of 4005243512 in words is "four billion, five million, two hundred forty-three thousand, five hundred twelve".