405230405 has 16 divisors (see below), whose sum is σ = 494433984. Its totient is φ = 318764160.

The previous prime is 405230389. The next prime is 405230407. The reversal of 405230405 is 504032504.

It is not a de Polignac number, because 405230405 - 2⁴ = 405230389 is a prime.

It is a super-2 number, since 2×405230405² = 328423362272928050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405230407) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 345470 + ... + 346640.

It is an arithmetic number, because the mean of its divisors is an integer number (30902124).

Almost surely, 2^405230405 is an apocalyptic number.

It is an amenable number.

405230405 is a deficient number, since it is larger than the sum of its proper divisors (89203579).

405230405 is a wasteful number, since it uses less digits than its factorization.

405230405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 405230405 is about 20130.3354418152. The cubic root of 405230405 is about 740.0038988107.

Adding to 405230405 its reverse (504032504), we get a palindrome (909262909).

The spelling of 405230405 in words is "four hundred five million, two hundred thirty thousand, four hundred five".