1444915772 has 12 divisors (see below), whose sum is σ = 2551801560. Its totient is φ = 715829616.

The previous prime is 1444915763. The next prime is 1444915793. The reversal of 1444915772 is 2775194441.

It is a congruent number.

It is an unprimeable number.

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, 1656578 + ... + 1657449.

It is an arithmetic number, because the mean of its divisors is an integer number (212650130).

Almost surely, 2^1444915772 is an apocalyptic number.

It is an amenable number.

1444915772 is a deficient number, since it is larger than the sum of its proper divisors (1106885788).

1444915772 is a wasteful number, since it uses less digits than its factorization.

1444915772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314140 (or 3314138 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 1444915772 is about 38012.0477217421. The cubic root of 1444915772 is about 1130.5267526134.

The spelling of 1444915772 in words is "one billion, four hundred forty-four million, nine hundred fifteen thousand, seven hundred seventy-two".