444740544 has 84 divisors (see below), whose sum is σ = 1322028344. Its totient is φ = 148241664.

The previous prime is 444740503. The next prime is 444740551. The reversal of 444740544 is 445047444.

444740544 is a `hidden beast` number, since 4 + 44 + 74 + 0 + 544 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 444740499 and 444740508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1254 + ... + 29850.

Almost surely, 2^444740544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444740544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661014172).

444740544 is an abundant number, since it is smaller than the sum of its proper divisors (877287800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444740544 is an equidigital number, since it uses as much as digits as its factorization.

444740544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624 (or 28602 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 36.

The square root of 444740544 is about 21088.8725160925. The cubic root of 444740544 is about 763.3122654360.

Adding to 444740544 its reverse (445047444), we get a palindrome (889787988).

The spelling of 444740544 in words is "four hundred forty-four million, seven hundred forty thousand, five hundred forty-four".