1444415013 has 12 divisors (see below), whose sum is σ = 2209105548. Its totient is φ = 906299520.

The previous prime is 1444415003. The next prime is 1444415057. The reversal of 1444415013 is 3105144441.

It can be written as a sum of positive squares in 2 ways, for example, as 1147989924 + 296425089 = 33882^2 + 17217^2 .

It is not a de Polignac number, because 1444415013 - 2⁴ = 1444414997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444415003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4720158 + ... + 4720463.

It is an arithmetic number, because the mean of its divisors is an integer number (184092129).

Almost surely, 2^1444415013 is an apocalyptic number.

It is an amenable number.

1444415013 is a deficient number, since it is larger than the sum of its proper divisors (764690535).

1444415013 is a wasteful number, since it uses less digits than its factorization.

1444415013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9440644 (or 9440641 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1444415013 is about 38005.4603050667. The cubic root of 1444415013 is about 1130.3961367281.

Adding to 1444415013 its reverse (3105144441), we get a palindrome (4549559454).

The spelling of 1444415013 in words is "one billion, four hundred forty-four million, four hundred fifteen thousand, thirteen".