4005542530 has 32 divisors (see below), whose sum is σ = 7965008640. Its totient is φ = 1438120320.

The previous prime is 4005542479. The next prime is 4005542543. The reversal of 4005542530 is 352455004.

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, 221779 + ... + 239158.

It is an arithmetic number, because the mean of its divisors is an integer number (248906520).

Almost surely, 2^4005542530 is an apocalyptic number.

4005542530 is a deficient number, since it is larger than the sum of its proper divisors (3959466110).

4005542530 is a wasteful number, since it uses less digits than its factorization.

4005542530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461034.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 4005542530 is about 63289.3555821198. The cubic root of 4005542530 is about 1588.1338984164.

Adding to 4005542530 its reverse (352455004), we get a palindrome (4357997534).

It can be divided in two parts, 4005 and 542530, that added together give a triangular number (546535 = T₁₀₄₅).

The spelling of 4005542530 in words is "four billion, five million, five hundred forty-two thousand, five hundred thirty".