1440005341 has 4 divisors (see below), whose sum is σ = 1440282492. Its totient is φ = 1439728192.

The previous prime is 1440005327. The next prime is 1440005351. The reversal of 1440005341 is 1435000441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 518882841 + 921122500 = 22779^2 + 30350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440005341 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 (1440005311) 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 3 ways as a sum of consecutive naturals, for example, 130630 + ... + 141223.

It is an arithmetic number, because the mean of its divisors is an integer number (360070623).

Almost surely, 2^1440005341 is an apocalyptic number.

It is an amenable number.

1440005341 is a deficient number, since it is larger than the sum of its proper divisors (277151).

1440005341 is an equidigital number, since it uses as much as digits as its factorization.

1440005341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277150.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1440005341 is about 37947.4022958094. The cubic root of 1440005341 is about 1129.2446307870.

Adding to 1440005341 its reverse (1435000441), we get a palindrome (2875005782).

The spelling of 1440005341 in words is "one billion, four hundred forty million, five thousand, three hundred forty-one".