444213393 has 32 divisors (see below), whose sum is σ = 656019840. Its totient is φ = 265628160.

The previous prime is 444213373. The next prime is 444213397. The reversal of 444213393 is 393312444.

It is not a de Polignac number, because 444213393 - 2⁸ = 444213137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444213397) 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 31 ways as a sum of consecutive naturals, for example, 605655 + ... + 606387.

It is an arithmetic number, because the mean of its divisors is an integer number (20500620).

Almost surely, 2^444213393 is an apocalyptic number.

It is an amenable number.

444213393 is a deficient number, since it is larger than the sum of its proper divisors (211806447).

444213393 is a wasteful number, since it uses less digits than its factorization.

444213393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its digits is 31104, while the sum is 33.

The square root of 444213393 is about 21076.3704892470. The cubic root of 444213393 is about 763.0105615063.

The spelling of 444213393 in words is "four hundred forty-four million, two hundred thirteen thousand, three hundred ninety-three".