40542403405 has 16 divisors (see below), whose sum is σ = 55760342400. Its totient is φ = 27720839232.

The previous prime is 40542403381. The next prime is 40542403417. The reversal of 40542403405 is 50430424504.

It is a cyclic number.

It is not a de Polignac number, because 40542403405 - 2⁵ = 40542403373 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1647319 + ... + 1671748.

It is an arithmetic number, because the mean of its divisors is an integer number (3485021400).

Almost surely, 2^40542403405 is an apocalyptic number.

It is an amenable number.

40542403405 is a deficient number, since it is larger than the sum of its proper divisors (15217938995).

40542403405 is a wasteful number, since it uses less digits than its factorization.

40542403405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319428.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 40542403405 its reverse (50430424504), we get a palindrome (90972827909).

The spelling of 40542403405 in words is "forty billion, five hundred forty-two million, four hundred three thousand, four hundred five".