4004442145 has 8 divisors (see below), whose sum is σ = 5242178880. Its totient is φ = 2912321520.

The previous prime is 4004442107. The next prime is 4004442241. The reversal of 4004442145 is 5412444004.

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

It is not a de Polignac number, because 4004442145 - 2⁷ = 4004442017 is a prime.

It is an unprimeable number.

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, 36403965 + ... + 36404074.

It is an arithmetic number, because the mean of its divisors is an integer number (655272360).

Almost surely, 2^4004442145 is an apocalyptic number.

It is an amenable number.

4004442145 is a deficient number, since it is larger than the sum of its proper divisors (1237736735).

4004442145 is a wasteful number, since it uses less digits than its factorization.

4004442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72808055.

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

The square root of 4004442145 is about 63280.6616985000. The cubic root of 4004442145 is about 1587.9884567142.

Adding to 4004442145 its reverse (5412444004), we get a palindrome (9416886149).

The spelling of 4004442145 in words is "four billion, four million, four hundred forty-two thousand, one hundred forty-five".