405313205 has 8 divisors (see below), whose sum is σ = 530591904. Its totient is φ = 294773200.

The previous prime is 405313157. The next prime is 405313229. The reversal of 405313205 is 502313504.

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

It is not a de Polignac number, because 405313205 - 2²² = 401118901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684611 + ... + 3684720.

It is an arithmetic number, because the mean of its divisors is an integer number (66323988).

Almost surely, 2^405313205 is an apocalyptic number.

It is an amenable number.

405313205 is a deficient number, since it is larger than the sum of its proper divisors (125278699).

405313205 is a wasteful number, since it uses less digits than its factorization.

405313205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369347.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 405313205 is about 20132.3919343927. The cubic root of 405313205 is about 740.0542966003.

Adding to 405313205 its reverse (502313504), we get a palindrome (907626709).

The spelling of 405313205 in words is "four hundred five million, three hundred thirteen thousand, two hundred five".