444272345 has 32 divisors (see below), whose sum is σ = 626503680. Its totient is φ = 298952640.

The previous prime is 444272327. The next prime is 444272359. The reversal of 444272345 is 543272444.

It is a de Polignac number, because none of the positive numbers 2^k-444272345 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 39992 + ... + 49878.

It is an arithmetic number, because the mean of its divisors is an integer number (19578240).

Almost surely, 2^444272345 is an apocalyptic number.

It is an amenable number.

444272345 is a deficient number, since it is larger than the sum of its proper divisors (182231335).

444272345 is a wasteful number, since it uses less digits than its factorization.

444272345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9965.

The product of its digits is 107520, while the sum is 35.

The square root of 444272345 is about 21077.7689758665. The cubic root of 444272345 is about 763.0443133094.

Subtracting 444272345 from its reverse (543272444), we obtain a palindrome (99000099).

The spelling of 444272345 in words is "four hundred forty-four million, two hundred seventy-two thousand, three hundred forty-five".