40542242005 has 16 divisors (see below), whose sum is σ = 53288791920. Its totient is φ = 29473303552.

The previous prime is 40542241973. The next prime is 40542242021. The reversal of 40542242005 is 50024224504.

It can be written as a sum of positive squares in 8 ways, for example, as 3114309636 + 37427932369 = 55806^2 + 193463^2 .

It is a cyclic number.

It is not a de Polignac number, because 40542242005 - 2⁵ = 40542241973 is a prime.

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, 8221114 + ... + 8226043.

It is an arithmetic number, because the mean of its divisors is an integer number (3330549495).

Almost surely, 2^40542242005 is an apocalyptic number.

It is an amenable number.

40542242005 is a deficient number, since it is larger than the sum of its proper divisors (12746549915).

40542242005 is a wasteful number, since it uses less digits than its factorization.

40542242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16447208.

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 40542242005 its reverse (50024224504), we get a palindrome (90566466509).

The spelling of 40542242005 in words is "forty billion, five hundred forty-two million, two hundred forty-two thousand, five".