444560221 has 8 divisors (see below), whose sum is σ = 516680640. Its totient is φ = 374592768.

The previous prime is 444560213. The next prime is 444560267. The reversal of 444560221 is 122065444.

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 444560221 - 2³ = 444560213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444560221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444560321) 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, 537796 + ... + 538621.

It is an arithmetic number, because the mean of its divisors is an integer number (64585080).

Almost surely, 2^444560221 is an apocalyptic number.

It is an amenable number.

444560221 is a deficient number, since it is larger than the sum of its proper divisors (72120419).

444560221 is a wasteful number, since it uses less digits than its factorization.

444560221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076483.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 444560221 is about 21084.5967711028. The cubic root of 444560221 is about 763.2090881518.

The spelling of 444560221 in words is "four hundred forty-four million, five hundred sixty thousand, two hundred twenty-one".