4009541405 has 16 divisors (see below), whose sum is σ = 5069913600. Its totient is φ = 3035672640.

The previous prime is 4009541399. The next prime is 4009541423. The reversal of 4009541405 is 5041459004.

It is a de Polignac number, because none of the positive numbers 2^k-4009541405 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72851 + ... + 115439.

It is an arithmetic number, because the mean of its divisors is an integer number (316869600).

Almost surely, 2^4009541405 is an apocalyptic number.

It is an amenable number.

4009541405 is a deficient number, since it is larger than the sum of its proper divisors (1060372195).

4009541405 is a wasteful number, since it uses less digits than its factorization.

4009541405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43604.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 4009541405 is about 63320.9397040189. The cubic root of 4009541405 is about 1588.6622194179.

The spelling of 4009541405 in words is "four billion, nine million, five hundred forty-one thousand, four hundred five".