444431141 has 8 divisors (see below), whose sum is σ = 554096064. Its totient is φ = 346309920.

The previous prime is 444431137. The next prime is 444431173. The reversal of 444431141 is 141134444.

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

It is not a de Polignac number, because 444431141 - 2² = 444431137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444431141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444431111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885840 + ... + 2885993.

It is an arithmetic number, because the mean of its divisors is an integer number (69262008).

Almost surely, 2^444431141 is an apocalyptic number.

It is an amenable number.

444431141 is a deficient number, since it is larger than the sum of its proper divisors (109664923).

444431141 is a wasteful number, since it uses less digits than its factorization.

444431141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771851.

The product of its digits is 3072, while the sum is 26.

The square root of 444431141 is about 21081.5355465393. The cubic root of 444431141 is about 763.1352139717.

Adding to 444431141 its reverse (141134444), we get a palindrome (585565585).

The spelling of 444431141 in words is "four hundred forty-four million, four hundred thirty-one thousand, one hundred forty-one".