1440067268 has 12 divisors (see below), whose sum is σ = 2607018540. Its totient is φ = 695204832.

The previous prime is 1440067267. The next prime is 1440067333. The reversal of 1440067268 is 8627600441.

It can be written as a sum of positive squares in 2 ways, for example, as 986462464 + 453604804 = 31408^2 + 21298^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1440067261) 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 3 ways as a sum of consecutive naturals, for example, 6207071 + ... + 6207302.

It is an arithmetic number, because the mean of its divisors is an integer number (217251545).

Almost surely, 2^1440067268 is an apocalyptic number.

It is an amenable number.

1440067268 is a deficient number, since it is larger than the sum of its proper divisors (1166951272).

1440067268 is a wasteful number, since it uses less digits than its factorization.

1440067268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12414406 (or 12414404 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 1440067268 is about 37948.2182453933. The cubic root of 1440067268 is about 1129.2608181644.

The spelling of 1440067268 in words is "one billion, four hundred forty million, sixty-seven thousand, two hundred sixty-eight".