42040440403 has 8 divisors (see below), whose sum is σ = 46497951248. Its totient is φ = 37757733984.

The previous prime is 42040440401. The next prime is 42040440413. The reversal of 42040440403 is 30404404024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42040440403 - 2¹ = 42040440401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42040440401) 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 7 ways as a sum of consecutive naturals, for example, 43700601 + ... + 43701562.

It is an arithmetic number, because the mean of its divisors is an integer number (5812243906).

Almost surely, 2^42040440403 is an apocalyptic number.

42040440403 is a deficient number, since it is larger than the sum of its proper divisors (4457510845).

42040440403 is a wasteful number, since it uses less digits than its factorization.

42040440403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87402213.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 42040440403 its reverse (30404404024), we get a palindrome (72444844427).

The spelling of 42040440403 in words is "forty-two billion, forty million, four hundred forty thousand, four hundred three".