405230212444421 has 64 divisors (see below), whose sum is σ = 501972992855040. Its totient is φ = 318554156574720.

The previous prime is 405230212444363. The next prime is 405230212444483. The reversal of 405230212444421 is 124444212032504.

It is a cyclic number.

It is not a de Polignac number, because 405230212444421 - 2²² = 405230208250117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405230212441421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16216331195 + ... + 16216356183.

It is an arithmetic number, because the mean of its divisors is an integer number (7843328013360).

Almost surely, 2^{405230212444421} is an apocalyptic number.

It is an amenable number.

405230212444421 is a deficient number, since it is larger than the sum of its proper divisors (96742780410619).

405230212444421 is a wasteful number, since it uses less digits than its factorization.

405230212444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27094.

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 405230212444421 its reverse (124444212032504), we get a palindrome (529674424476925).

The spelling of 405230212444421 in words is "four hundred five trillion, two hundred thirty billion, two hundred twelve million, four hundred forty-four thousand, four hundred twenty-one".