444333423413 has 6 divisors (see below), whose sum is σ = 488399548182. Its totient is φ = 403939475720.

The previous prime is 444333423379. The next prime is 444333423467. The reversal of 444333423413 is 314324333444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 324446438404 + 119886985009 = 569602^2 + 346247^2 .

It is not a de Polignac number, because 444333423413 - 2²⁴ = 444316646197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444333423013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1836088406 + ... + 1836088647.

It is an arithmetic number, because the mean of its divisors is an integer number (81399924697).

Almost surely, 2^444333423413 is an apocalyptic number.

It is an amenable number.

444333423413 is a deficient number, since it is larger than the sum of its proper divisors (44066124769).

444333423413 is a wasteful number, since it uses less digits than its factorization.

444333423413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672177075 (or 3672177064 counting only the distinct ones).

The product of its digits is 497664, while the sum is 38.

Adding to 444333423413 its reverse (314324333444), we get a palindrome (758657756857).

The spelling of 444333423413 in words is "four hundred forty-four billion, three hundred thirty-three million, four hundred twenty-three thousand, four hundred thirteen".