1444375636 has 12 divisors (see below), whose sum is σ = 2757444480. Its totient is φ = 656534360.

The previous prime is 1444375619. The next prime is 1444375679. The reversal of 1444375636 is 6365734441.

It is a junction number, because it is equal to n+sod(n) for n = 1444375592 and 1444375601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16413316 + ... + 16413403.

It is an arithmetic number, because the mean of its divisors is an integer number (229787040).

Almost surely, 2^1444375636 is an apocalyptic number.

It is an amenable number.

1444375636 is a deficient number, since it is larger than the sum of its proper divisors (1313068844).

1444375636 is a wasteful number, since it uses less digits than its factorization.

1444375636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32826734 (or 32826732 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 1444375636 is about 38004.9422575538. The cubic root of 1444375636 is about 1130.3858645158.

The spelling of 1444375636 in words is "one billion, four hundred forty-four million, three hundred seventy-five thousand, six hundred thirty-six".