444536993 has 8 divisors (see below), whose sum is σ = 460087296. Its totient is φ = 429062400.

The previous prime is 444536987. The next prime is 444536999. The reversal of 444536993 is 399635444.

It is an interprime number because it is at equal distance from previous prime (444536987) and next prime (444536999).

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

It is a cyclic number.

It is not a de Polignac number, because 444536993 - 2¹⁰ = 444535969 is a prime.

It is a super-2 number, since 2×444536993² = 395226276290964098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444536999) 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, 6848 + ... + 30593.

It is an arithmetic number, because the mean of its divisors is an integer number (57510912).

Almost surely, 2^444536993 is an apocalyptic number.

It is an amenable number.

444536993 is a deficient number, since it is larger than the sum of its proper divisors (15550303).

444536993 is a wasteful number, since it uses less digits than its factorization.

444536993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37855.

The product of its digits is 1399680, while the sum is 47.

The square root of 444536993 is about 21084.0459352564. The cubic root of 444536993 is about 763.1957955174.

The spelling of 444536993 in words is "four hundred forty-four million, five hundred thirty-six thousand, nine hundred ninety-three".