40506060405 has 16 divisors (see below), whose sum is σ = 65043673344. Its totient is φ = 21525240000.

The previous prime is 40506060389. The next prime is 40506060443. The reversal of 40506060405 is 50406060504.

It is not a de Polignac number, because 40506060405 - 2⁴ = 40506060389 is a prime.

It is a Curzon 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, 4870221 + ... + 4878530.

It is an arithmetic number, because the mean of its divisors is an integer number (4065229584).

Almost surely, 2^40506060405 is an apocalyptic number.

It is an amenable number.

40506060405 is a deficient number, since it is larger than the sum of its proper divisors (24537612939).

40506060405 is a wasteful number, since it uses less digits than its factorization.

40506060405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9749036.

The product of its (nonzero) digits is 14400, while the sum is 30.

Subtracting 40506060405 from its reverse (50406060504), we obtain a palindrome (9900000099).

The spelling of 40506060405 in words is "forty billion, five hundred six million, sixty thousand, four hundred five".