1440243116 has 12 divisors (see below), whose sum is σ = 2714304432. Its totient is φ = 664727568.

The previous prime is 1440243097. The next prime is 1440243131. The reversal of 1440243116 is 6113420441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 3 ways as a sum of consecutive naturals, for example, 13848440 + ... + 13848543.

It is an arithmetic number, because the mean of its divisors is an integer number (226192036).

Almost surely, 2^1440243116 is an apocalyptic number.

It is an amenable number.

1440243116 is a deficient number, since it is larger than the sum of its proper divisors (1274061316).

1440243116 is a wasteful number, since it uses less digits than its factorization.

1440243116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27697000 (or 27696998 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1440243116 is about 37950.5351213919. The cubic root of 1440243116 is about 1129.3067813354.

Adding to 1440243116 its reverse (6113420441), we get a palindrome (7553663557).

The spelling of 1440243116 in words is "one billion, four hundred forty million, two hundred forty-three thousand, one hundred sixteen".