1444287356 has 18 divisors (see below), whose sum is σ = 2667533400. Its totient is φ = 684135432.

The previous prime is 1444287349. The next prime is 1444287359. The reversal of 1444287356 is 6537824441.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444287359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 498656 + ... + 501543.

It is an arithmetic number, because the mean of its divisors is an integer number (148196300).

Almost surely, 2^1444287356 is an apocalyptic number.

It is an amenable number.

1444287356 is a deficient number, since it is larger than the sum of its proper divisors (1223246044).

1444287356 is a wasteful number, since it uses less digits than its factorization.

1444287356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000241 (or 1000220 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 1444287356 is about 38003.7808119140. The cubic root of 1444287356 is about 1130.3628343809.

The spelling of 1444287356 in words is "one billion, four hundred forty-four million, two hundred eighty-seven thousand, three hundred fifty-six".