444036513 has 4 divisors (see below), whose sum is σ = 592048688. Its totient is φ = 296024340.

The previous prime is 444036497. The next prime is 444036559. The reversal of 444036513 is 315630444.

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 444036513 - 2⁴ = 444036497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444036563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74006083 + ... + 74006088.

It is an arithmetic number, because the mean of its divisors is an integer number (148012172).

Almost surely, 2^444036513 is an apocalyptic number.

It is an amenable number.

444036513 is a deficient number, since it is larger than the sum of its proper divisors (148012175).

444036513 is a wasteful number, since it uses less digits than its factorization.

444036513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148012174.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 444036513 is about 21072.1739030409. The cubic root of 444036513 is about 762.9092744316.

Adding to 444036513 its reverse (315630444), we get a palindrome (759666957).

The spelling of 444036513 in words is "four hundred forty-four million, thirty-six thousand, five hundred thirteen".