1440742266 has 24 divisors (see below), whose sum is σ = 3125977920. Its totient is φ = 479575176.

The previous prime is 1440742253. The next prime is 1440742273. The reversal of 1440742266 is 6622470441.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440742266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42720 + ... + 68603.

It is an arithmetic number, because the mean of its divisors is an integer number (130249080).

Almost surely, 2^1440742266 is an apocalyptic number.

1440742266 is an abundant number, since it is smaller than the sum of its proper divisors (1685235654).

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

1440742266 is a wasteful number, since it uses less digits than its factorization.

1440742266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112050 (or 112047 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 1440742266 is about 37957.1108753024. The cubic root of 1440742266 is about 1129.4372288424.

The spelling of 1440742266 in words is "one billion, four hundred forty million, seven hundred forty-two thousand, two hundred sixty-six".