1405320041 has 4 divisors (see below), whose sum is σ = 1406304900. Its totient is φ = 1404335184.

The previous prime is 1405320029. The next prime is 1405320071. The reversal of 1405320041 is 1400235041.

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 645160000 + 760160041 = 25400^2 + 27571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405320041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1405319995 and 1405320022.

It is not an unprimeable number, because it can be changed into a prime (1405320071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490286 + ... + 493143.

It is an arithmetic number, because the mean of its divisors is an integer number (351576225).

Almost surely, 2^1405320041 is an apocalyptic number.

It is an amenable number.

1405320041 is a deficient number, since it is larger than the sum of its proper divisors (984859).

1405320041 is an equidigital number, since it uses as much as digits as its factorization.

1405320041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984858.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1405320041 is about 37487.5984960360. The cubic root of 1405320041 is about 1120.1041678730.

Adding to 1405320041 its reverse (1400235041), we get a palindrome (2805555082).

The spelling of 1405320041 in words is "one billion, four hundred five million, three hundred twenty thousand, forty-one".