1440324243 has 12 divisors (see below), whose sum is σ = 2081823120. Its totient is φ = 959590896.

The previous prime is 1440324227. The next prime is 1440324251. The reversal of 1440324243 is 3424230441.

It is a happy number.

1440324243 is a `hidden beast` number, since 14 + 403 + 2 + 4 + 243 = 666.

It is not a de Polignac number, because 1440324243 - 2⁴ = 1440324227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440324043) 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 11 ways as a sum of consecutive naturals, for example, 37296 + ... + 65357.

It is an arithmetic number, because the mean of its divisors is an integer number (173485260).

Almost surely, 2^1440324243 is an apocalyptic number.

1440324243 is a deficient number, since it is larger than the sum of its proper divisors (641498877).

1440324243 is a wasteful number, since it uses less digits than its factorization.

1440324243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104218 (or 104215 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1440324243 is about 37951.6039581992. The cubic root of 1440324243 is about 1129.3279850590.

Adding to 1440324243 its reverse (3424230441), we get a palindrome (4864554684).

The spelling of 1440324243 in words is "one billion, four hundred forty million, three hundred twenty-four thousand, two hundred forty-three".