1440795763 has 12 divisors (see below), whose sum is σ = 1617386400. Its totient is φ = 1281940880.

The previous prime is 1440795761. The next prime is 1440795791. The reversal of 1440795763 is 3675970441.

It is not a de Polignac number, because 1440795763 - 2¹ = 1440795761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440795761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120988 + ... + 132361.

It is an arithmetic number, because the mean of its divisors is an integer number (134782200).

Almost surely, 2^1440795763 is an apocalyptic number.

1440795763 is a deficient number, since it is larger than the sum of its proper divisors (176590637).

1440795763 is a wasteful number, since it uses less digits than its factorization.

1440795763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253418 (or 253407 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 1440795763 is about 37957.8155720268. The cubic root of 1440795763 is about 1129.4512079228.

The spelling of 1440795763 in words is "one billion, four hundred forty million, seven hundred ninety-five thousand, seven hundred sixty-three".