1440321341 has 8 divisors (see below), whose sum is σ = 1508664960. Its totient is φ = 1372454512.

The previous prime is 1440321331. The next prime is 1440321343. The reversal of 1440321341 is 1431230441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440321341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440321343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113006 + ... + 125103.

It is an arithmetic number, because the mean of its divisors is an integer number (188583120).

Almost surely, 2^1440321341 is an apocalyptic number.

It is an amenable number.

1440321341 is a deficient number, since it is larger than the sum of its proper divisors (68343619).

1440321341 is a wasteful number, since it uses less digits than its factorization.

1440321341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238395.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1440321341 is about 37951.5657252767. The cubic root of 1440321341 is about 1129.3272265928.

Adding to 1440321341 its reverse (1431230441), we get a palindrome (2871551782).

The spelling of 1440321341 in words is "one billion, four hundred forty million, three hundred twenty-one thousand, three hundred forty-one".