444428375 has 8 divisors (see below), whose sum is σ = 554646768. Its totient is φ = 355542600.

The previous prime is 444428363. The next prime is 444428377. The reversal of 444428375 is 573824444.

It is not a de Polignac number, because 444428375 - 2⁶ = 444428311 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 (444428377) by changing a digit.

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, 1777589 + ... + 1777838.

It is an arithmetic number, because the mean of its divisors is an integer number (69330846).

Almost surely, 2^444428375 is an apocalyptic number.

444428375 is a deficient number, since it is larger than the sum of its proper divisors (110218393).

444428375 is an equidigital number, since it uses as much as digits as its factorization.

444428375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555442 (or 3555432 counting only the distinct ones).

The product of its digits is 430080, while the sum is 41.

The square root of 444428375 is about 21081.4699440053. The cubic root of 444428375 is about 763.1336307971.

The spelling of 444428375 in words is "four hundred forty-four million, four hundred twenty-eight thousand, three hundred seventy-five".