1440014368 has 48 divisors (see below), whose sum is σ = 3083426136. Its totient is φ = 658022400.

The previous prime is 1440014363. The next prime is 1440014413. The reversal of 1440014368 is 8634100441.

It can be written as a sum of positive squares in 4 ways, for example, as 1435803664 + 4210704 = 37892^2 + 2052^2 .

It is not an unprimeable number, because it can be changed into a prime (1440014363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24880 + ... + 59152.

Almost surely, 2^1440014368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440014368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541713068).

1440014368 is an abundant number, since it is smaller than the sum of its proper divisors (1643411768).

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

1440014368 is a wasteful number, since it uses less digits than its factorization.

1440014368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34397 (or 34389 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1440014368 is about 37947.5212365709. The cubic root of 1440014368 is about 1129.2469904241.

The spelling of 1440014368 in words is "one billion, four hundred forty million, fourteen thousand, three hundred sixty-eight".