1405044013 has 8 divisors (see below), whose sum is σ = 1410282720. Its totient is φ = 1399815120.

The previous prime is 1405043989. The next prime is 1405044019. The reversal of 1405044013 is 3104405041.

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

It is a cyclic number.

It is not a de Polignac number, because 1405044013 - 2²⁹ = 868173101 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 (1405044019) 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, 395023 + ... + 398563.

It is an arithmetic number, because the mean of its divisors is an integer number (176285340).

Almost surely, 2^1405044013 is an apocalyptic number.

It is an amenable number.

1405044013 is a deficient number, since it is larger than the sum of its proper divisors (5238707).

1405044013 is an equidigital number, since it uses as much as digits as its factorization.

1405044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907.

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

The square root of 1405044013 is about 37483.9167243766. The cubic root of 1405044013 is about 1120.0308274359.

Adding to 1405044013 its reverse (3104405041), we get a palindrome (4509449054).

The spelling of 1405044013 in words is "one billion, four hundred five million, forty-four thousand, thirteen".