405204523404 has 24 divisors (see below), whose sum is σ = 945644454720. Its totient is φ = 135044283984.

The previous prime is 405204523363. The next prime is 405204523411. The reversal of 405204523404 is 404325402504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2915574 + ... + 3051389.

It is an arithmetic number, because the mean of its divisors is an integer number (39401852280).

Almost surely, 2^405204523404 is an apocalyptic number.

It is an amenable number.

405204523404 is an abundant number, since it is smaller than the sum of its proper divisors (540439931316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405204523404 is a wasteful number, since it uses less digits than its factorization.

405204523404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972629 (or 5972627 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 405204523404 its reverse (404325402504), we get a palindrome (809529925908).

The spelling of 405204523404 in words is "four hundred five billion, two hundred four million, five hundred twenty-three thousand, four hundred four".