4005351605 has 16 divisors (see below), whose sum is σ = 4875024000. Its totient is φ = 3158844480.

The previous prime is 4005351577. The next prime is 4005351607. The reversal of 4005351605 is 5061535004.

It is not a de Polignac number, because 4005351605 - 2¹⁴ = 4005335221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005351607) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 89990 + ... + 126920.

It is an arithmetic number, because the mean of its divisors is an integer number (304689000).

Almost surely, 2^4005351605 is an apocalyptic number.

It is an amenable number.

4005351605 is a deficient number, since it is larger than the sum of its proper divisors (869672395).

4005351605 is a wasteful number, since it uses less digits than its factorization.

4005351605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37244.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 4005351605 is about 63287.8472141374. The cubic root of 4005351605 is about 1588.1086651070.

Adding to 4005351605 its reverse (5061535004), we get a palindrome (9066886609).

The spelling of 4005351605 in words is "four billion, five million, three hundred fifty-one thousand, six hundred five".