44142005 has 8 divisors (see below), whose sum is σ = 53696472. Its totient is φ = 34829568.

The previous prime is 44141969. The next prime is 44142017. The reversal of 44142005 is 50024144.

44142005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14122564 + 30019441 = 3758^2 + 5479^2 .

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 44142005 - 2⁸ = 44141749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60104 + ... + 60833.

It is an arithmetic number, because the mean of its divisors is an integer number (6712059).

Almost surely, 2^44142005 is an apocalyptic number.

It is an amenable number.

44142005 is a deficient number, since it is larger than the sum of its proper divisors (9554467).

44142005 is a wasteful number, since it uses less digits than its factorization.

44142005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121015.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 44142005 is about 6643.9449877313. The cubic root of 44142005 is about 353.4142189530.

Adding to 44142005 its reverse (50024144), we get a palindrome (94166149).

The spelling of 44142005 in words is "forty-four million, one hundred forty-two thousand, five".