444445556 has 12 divisors (see below), whose sum is σ = 778132740. Its totient is φ = 222121920.

The previous prime is 444445531. The next prime is 444445559. The reversal of 444445556 is 655544444.

It can be written as a sum of positive squares in 2 ways, for example, as 347225956 + 97219600 = 18634^2 + 9860^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444445559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14825 + ... + 33296.

It is an arithmetic number, because the mean of its divisors is an integer number (64844395).

Almost surely, 2^444445556 is an apocalyptic number.

It is an amenable number.

444445556 is a deficient number, since it is larger than the sum of its proper divisors (333687184).

444445556 is a wasteful number, since it uses less digits than its factorization.

444445556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50434 (or 50432 counting only the distinct ones).

The product of its digits is 768000, while the sum is 41.

The square root of 444445556 is about 21081.8774306275. The cubic root of 444445556 is about 763.1434645751.

The spelling of 444445556 in words is "four hundred forty-four million, four hundred forty-five thousand, five hundred fifty-six".