4001035405 has 16 divisors (see below), whose sum is σ = 4950437184. Its totient is φ = 3102503040.

The previous prime is 4001035399. The next prime is 4001035417. The reversal of 4001035405 is 5045301004.

It is not a de Polignac number, because 4001035405 - 2⁷ = 4001035277 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 42864 + ... + 99193.

It is an arithmetic number, because the mean of its divisors is an integer number (309402324).

Almost surely, 2^4001035405 is an apocalyptic number.

It is an amenable number.

4001035405 is a deficient number, since it is larger than the sum of its proper divisors (949401779).

4001035405 is a wasteful number, since it uses less digits than its factorization.

4001035405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142236.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 4001035405 is about 63253.7382689751. The cubic root of 4001035405 is about 1587.5380070674.

Adding to 4001035405 its reverse (5045301004), we get a palindrome (9046336409).

The spelling of 4001035405 in words is "four billion, one million, thirty-five thousand, four hundred five".