1440768 has 88 divisors (see below), whose sum is σ = 4454272. Its totient is φ = 405504.

The previous prime is 1440763. The next prime is 1440773. The reversal of 1440768 is 8670441.

It is an interprime number because it is at equal distance from previous prime (1440763) and next prime (1440773).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440763) 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, 21471 + ... + 21537.

2^1440768 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 1440768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2227136).

1440768 is an abundant number, since it is smaller than the sum of its proper divisors (3013504).

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

1440768 is an equidigital number, since it uses as much as digits as its factorization.

1440768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1440768 is about 1200.3199573447. The cubic root of 1440768 is about 112.9443953331.

The spelling of 1440768 in words is "one million, four hundred forty thousand, seven hundred sixty-eight".