42440332001 has 4 divisors (see below), whose sum is σ = 42444140292. Its totient is φ = 42436523712.

The previous prime is 42440331971. The next prime is 42440332027. The reversal of 42440332001 is 10023304424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27556332001 + 14884000000 = 166001^2 + 122000^2 .

It is a cyclic number.

It is not a de Polignac number, because 42440332001 - 2¹⁸ = 42440069857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42440352001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887380 + ... + 1909733.

It is an arithmetic number, because the mean of its divisors is an integer number (10611035073).

Almost surely, 2^42440332001 is an apocalyptic number.

It is an amenable number.

42440332001 is a deficient number, since it is larger than the sum of its proper divisors (3808291).

42440332001 is a wasteful number, since it uses less digits than its factorization.

42440332001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808290.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42440332001 its reverse (10023304424), we get a palindrome (52463636425).

The spelling of 42440332001 in words is "forty-two billion, four hundred forty million, three hundred thirty-two thousand, one".