444103513 has 24 divisors (see below), whose sum is σ = 531468000. Its totient is φ = 369794880.

The previous prime is 444103507. The next prime is 444103523. The reversal of 444103513 is 315301444.

It is a de Polignac number, because none of the positive numbers 2^k-444103513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444103523) 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 23 ways as a sum of consecutive naturals, for example, 889738 + ... + 890236.

It is an arithmetic number, because the mean of its divisors is an integer number (22144500).

Almost surely, 2^444103513 is an apocalyptic number.

It is an amenable number.

444103513 is a deficient number, since it is larger than the sum of its proper divisors (87364487).

444103513 is a wasteful number, since it uses less digits than its factorization.

444103513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 444103513 is about 21073.7636173513. The cubic root of 444103513 is about 762.9476439119.

Adding to 444103513 its reverse (315301444), we get a palindrome (759404957).

The spelling of 444103513 in words is "four hundred forty-four million, one hundred three thousand, five hundred thirteen".