444202313 has 4 divisors (see below), whose sum is σ = 444244500. Its totient is φ = 444160128.

The previous prime is 444202307. The next prime is 444202321. The reversal of 444202313 is 313202444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 99840064 + 344362249 = 9992^2 + 18557^2 .

It is a cyclic number.

It is not a de Polignac number, because 444202313 - 2⁶ = 444202249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444202303) 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, 9281 + ... + 31217.

It is an arithmetic number, because the mean of its divisors is an integer number (111061125).

Almost surely, 2^444202313 is an apocalyptic number.

It is an amenable number.

444202313 is a deficient number, since it is larger than the sum of its proper divisors (42187).

444202313 is a wasteful number, since it uses less digits than its factorization.

444202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42186.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 444202313 is about 21076.1076340011. The cubic root of 444202313 is about 763.0042175378.

Adding to 444202313 its reverse (313202444), we get a palindrome (757404757).

The spelling of 444202313 in words is "four hundred forty-four million, two hundred two thousand, three hundred thirteen".