1444728494 has 16 divisors (see below), whose sum is σ = 2364716160. Its totient is φ = 656523960.

The previous prime is 1444728487. The next prime is 1444728503. The reversal of 1444728494 is 4948274441.

It is a super-3 number, since 3×1444728494³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 122927 + ... + 134165.

It is an arithmetic number, because the mean of its divisors is an integer number (147794760).

Almost surely, 2^1444728494 is an apocalyptic number.

1444728494 is a deficient number, since it is larger than the sum of its proper divisors (919987666).

1444728494 is a wasteful number, since it uses less digits than its factorization.

1444728494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17095.

The product of its digits is 1032192, while the sum is 47.

The square root of 1444728494 is about 38009.5842387154. The cubic root of 1444728494 is about 1130.4779073356.

The spelling of 1444728494 in words is "one billion, four hundred forty-four million, seven hundred twenty-eight thousand, four hundred ninety-four".