40445242305 has 64 divisors (see below), whose sum is σ = 70086331392. Its totient is φ = 19798732800.

The previous prime is 40445242303. The next prime is 40445242363. The reversal of 40445242305 is 50324254404.

It is not a de Polignac number, because 40445242305 - 2¹ = 40445242303 is a prime.

It is a super-2 number, since 2×40445242305² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40445242303) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 33675705 + ... + 33676905.

It is an arithmetic number, because the mean of its divisors is an integer number (1095098928).

Almost surely, 2^40445242305 is an apocalyptic number.

It is an amenable number.

40445242305 is a deficient number, since it is larger than the sum of its proper divisors (29641089087).

40445242305 is a wasteful number, since it uses less digits than its factorization.

40445242305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058.

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 40445242305 its reverse (50324254404), we get a palindrome (90769496709).

The spelling of 40445242305 in words is "forty billion, four hundred forty-five million, two hundred forty-two thousand, three hundred five".