1440100323 has 16 divisors (see below), whose sum is σ = 2139126400. Its totient is φ = 957526920.

The previous prime is 1440100303. The next prime is 1440100339. The reversal of 1440100323 is 3230010441.

It is not a de Polignac number, because 1440100323 - 2²⁴ = 1423323107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440100296 and 1440100305.

It is not an unprimeable number, because it can be changed into a prime (1440100303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60133 + ... + 80598.

It is an arithmetic number, because the mean of its divisors is an integer number (133695400).

Almost surely, 2^1440100323 is an apocalyptic number.

1440100323 is a deficient number, since it is larger than the sum of its proper divisors (699026077).

1440100323 is a wasteful number, since it uses less digits than its factorization.

1440100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141119 (or 141113 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1440100323 is about 37948.6537705885. The cubic root of 1440100323 is about 1129.2694583698.

Adding to 1440100323 its reverse (3230010441), we get a palindrome (4670110764).

The spelling of 1440100323 in words is "one billion, four hundred forty million, one hundred thousand, three hundred twenty-three".