42440240410 has 16 divisors (see below), whose sum is σ = 80886105576. Its totient is φ = 15977502208.

The previous prime is 42440240387. The next prime is 42440240413. The reversal of 42440240410 is 1404204424.

It can be written as a sum of positive squares in 4 ways, for example, as 30320212129 + 12120028281 = 174127^2 + 110091^2 .

It is not an unprimeable number, because it can be changed into a prime (42440240413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124824067 + ... + 124824406.

Almost surely, 2^42440240410 is an apocalyptic number.

42440240410 is a deficient number, since it is larger than the sum of its proper divisors (38445865166).

42440240410 is a wasteful number, since it uses less digits than its factorization.

42440240410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249648497.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 42440240410 its reverse (1404204424), we get a palindrome (43844444834).

The spelling of 42440240410 in words is "forty-two billion, four hundred forty million, two hundred forty thousand, four hundred ten".