4005312530 has 32 divisors (see below), whose sum is σ = 7643289600. Its totient is φ = 1508535360.

The previous prime is 4005312517. The next prime is 4005312533. The reversal of 4005312530 is 352135004.

4005312530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4005312496 and 4005312505.

It is not an unprimeable number, because it can be changed into a prime (4005312533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163130 + ... + 186069.

It is an arithmetic number, because the mean of its divisors is an integer number (238852800).

Almost surely, 2^4005312530 is an apocalyptic number.

4005312530 is a deficient number, since it is larger than the sum of its proper divisors (3637977070).

4005312530 is a wasteful number, since it uses less digits than its factorization.

4005312530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349274.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 4005312530 is about 63287.5385048273. The cubic root of 4005312530 is about 1588.1035007208.

Adding to 4005312530 its reverse (352135004), we get a palindrome (4357447534).

The spelling of 4005312530 in words is "four billion, five million, three hundred twelve thousand, five hundred thirty".