444314044421 has 16 divisors (see below), whose sum is σ = 487757395440. Its totient is φ = 402201845760.

The previous prime is 444314044397. The next prime is 444314044451. The reversal of 444314044421 is 124440413444.

It can be written as a sum of positive squares in 8 ways, for example, as 152557423396 + 291756621025 = 390586^2 + 540145^2 .

It is a de Polignac number, because none of the positive numbers 2^k-444314044421 is a prime.

It is a super-2 number, since 2×444314044421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444314044451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269701 + ... + 1581381.

It is an arithmetic number, because the mean of its divisors is an integer number (30484837215).

Almost surely, 2^444314044421 is an apocalyptic number.

It is an amenable number.

444314044421 is a deficient number, since it is larger than the sum of its proper divisors (43443351019).

444314044421 is a wasteful number, since it uses less digits than its factorization.

444314044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313816.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 444314044421 its reverse (124440413444), we get a palindrome (568754457865).

The spelling of 444314044421 in words is "four hundred forty-four billion, three hundred fourteen million, forty-four thousand, four hundred twenty-one".