444400141 has 8 divisors (see below), whose sum is σ = 455026880. Its totient is φ = 433786752.

The previous prime is 444400133. The next prime is 444400153. The reversal of 444400141 is 141004444.

It is a happy number.

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

It is not a de Polignac number, because 444400141 - 2³ = 444400133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444400171) by changing a digit.

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, 105565 + ... + 109693.

It is an arithmetic number, because the mean of its divisors is an integer number (56878360).

Almost surely, 2^444400141 is an apocalyptic number.

It is an amenable number.

444400141 is a deficient number, since it is larger than the sum of its proper divisors (10626739).

444400141 is a wasteful number, since it uses less digits than its factorization.

444400141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 444400141 is about 21080.8002931578. The cubic root of 444400141 is about 763.1174701344.

Adding to 444400141 its reverse (141004444), we get a palindrome (585404585).

The spelling of 444400141 in words is "four hundred forty-four million, four hundred thousand, one hundred forty-one".