1444402011320 has 32 divisors (see below), whose sum is σ = 3251508015600. Its totient is φ = 577475739648.

The previous prime is 1444402011301. The next prime is 1444402011323. The reversal of 1444402011320 is 231102044441.

It is a super-2 number, since 2×1444402011320² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1444402011320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444402011323) by changing a digit.

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, 8826185 + ... + 8988344.

Almost surely, 2^{1444402011320} is an apocalyptic number.

1444402011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444402011320 is an abundant number, since it is smaller than the sum of its proper divisors (1807106004280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444402011320 is a wasteful number, since it uses less digits than its factorization.

1444402011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17816567 (or 17816563 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1444402011320 its reverse (231102044441), we get a palindrome (1675504055761).

The spelling of 1444402011320 in words is "one trillion, four hundred forty-four billion, four hundred two million, eleven thousand, three hundred twenty".