1440005413 has 32 divisors (see below), whose sum is σ = 1885685760. Its totient is φ = 1066253760.

The previous prime is 1440005393. The next prime is 1440005419. The reversal of 1440005413 is 3145000441.

It is a de Polignac number, because none of the positive numbers 2^k-1440005413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440005419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275458 + ... + 280636.

It is an arithmetic number, because the mean of its divisors is an integer number (58927680).

Almost surely, 2^1440005413 is an apocalyptic number.

It is an amenable number.

1440005413 is a deficient number, since it is larger than the sum of its proper divisors (445680347).

1440005413 is a wasteful number, since it uses less digits than its factorization.

1440005413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377.

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

The square root of 1440005413 is about 37947.4032444909. The cubic root of 1440005413 is about 1129.2446496077.

Adding to 1440005413 its reverse (3145000441), we get a palindrome (4585005854).

The spelling of 1440005413 in words is "one billion, four hundred forty million, five thousand, four hundred thirteen".