4042440145 has 8 divisors (see below), whose sum is σ = 5007409920. Its totient is φ = 3129630960.

The previous prime is 4042440137. The next prime is 4042440169. The reversal of 4042440145 is 5410442404.

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

It is not a de Polignac number, because 4042440145 - 2³ = 4042440137 is a prime.

It is an unprimeable number.

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, 13039975 + ... + 13040284.

It is an arithmetic number, because the mean of its divisors is an integer number (625926240).

Almost surely, 2^4042440145 is an apocalyptic number.

It is an amenable number.

4042440145 is a deficient number, since it is larger than the sum of its proper divisors (964969775).

4042440145 is a wasteful number, since it uses less digits than its factorization.

4042440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26080295.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 4042440145 is about 63580.1867329752. The cubic root of 4042440145 is about 1592.9954403860.

Adding to 4042440145 its reverse (5410442404), we get a palindrome (9452882549).

The spelling of 4042440145 in words is "four billion, forty-two million, four hundred forty thousand, one hundred forty-five".