1444472965 has 8 divisors (see below), whose sum is σ = 1866703608. Its totient is φ = 1066687680.

The previous prime is 1444472963. The next prime is 1444472969. The reversal of 1444472965 is 5692744441.

It can be written as a sum of positive squares in 4 ways, for example, as 67617729 + 1376855236 = 8223^2 + 37106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1444472965 - 2¹ = 1444472963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444472963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11111266 + ... + 11111395.

It is an arithmetic number, because the mean of its divisors is an integer number (233337951).

Almost surely, 2^1444472965 is an apocalyptic number.

It is an amenable number.

1444472965 is a deficient number, since it is larger than the sum of its proper divisors (422230643).

1444472965 is a wasteful number, since it uses less digits than its factorization.

1444472965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222679.

The product of its digits is 967680, while the sum is 46.

The square root of 1444472965 is about 38006.2227141820. Note that the first 3 decimals coincide. The cubic root of 1444472965 is about 1130.4112542302.

The spelling of 1444472965 in words is "one billion, four hundred forty-four million, four hundred seventy-two thousand, nine hundred sixty-five".