1440797 has 4 divisors (see below), whose sum is σ = 1458240. Its totient is φ = 1423356.

The previous prime is 1440779. The next prime is 1440799. The reversal of 1440797 is 7970441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1440797 - 2¹⁰ = 1439773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597 + ... + 8762.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

2^1440797 is an apocalyptic number.

It is an amenable number.

1440797 is a deficient number, since it is larger than the sum of its proper divisors (17443).

1440797 is an equidigital number, since it uses as much as digits as its factorization.

1440797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17442.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1440797 is about 1200.3320373963. The cubic root of 1440797 is about 112.9451531154.

The spelling of 1440797 in words is "one million, four hundred forty thousand, seven hundred ninety-seven".