405313841 has 4 divisors (see below), whose sum is σ = 405363300. Its totient is φ = 405264384.

The previous prime is 405313837. The next prime is 405313859. The reversal of 405313841 is 148313504.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 338008225 = 8204^2 + 18385^2 .

It is a cyclic number.

It is not a de Polignac number, because 405313841 - 2² = 405313837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405313801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9176 + ... + 29913.

It is an arithmetic number, because the mean of its divisors is an integer number (101340825).

Almost surely, 2^405313841 is an apocalyptic number.

It is an amenable number.

405313841 is a deficient number, since it is larger than the sum of its proper divisors (49459).

405313841 is a wasteful number, since it uses less digits than its factorization.

405313841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49458.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 405313841 is about 20132.4077298271. The cubic root of 405313841 is about 740.0546836872.

The spelling of 405313841 in words is "four hundred five million, three hundred thirteen thousand, eight hundred forty-one".