444048321 has 4 divisors (see below), whose sum is σ = 592064432. Its totient is φ = 296032212.

The previous prime is 444048317. The next prime is 444048331. The reversal of 444048321 is 123840444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 444048321 - 2² = 444048317 is a prime.

It is a super-2 number, since 2×444048321² = 394357822765838082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444048331) 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, 74008051 + ... + 74008056.

It is an arithmetic number, because the mean of its divisors is an integer number (148016108).

Almost surely, 2^444048321 is an apocalyptic number.

It is an amenable number.

444048321 is a deficient number, since it is larger than the sum of its proper divisors (148016111).

444048321 is a wasteful number, since it uses less digits than its factorization.

444048321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148016110.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 444048321 is about 21072.4540810984. The cubic root of 444048321 is about 762.9160369031.

Adding to 444048321 its reverse (123840444), we get a palindrome (567888765).

It can be divided in two parts, 44404 and 8321, that added together give a palindrome (52725).

The spelling of 444048321 in words is "four hundred forty-four million, forty-eight thousand, three hundred twenty-one".