421403171404 has 24 divisors (see below), whose sum is σ = 738941193648. Its totient is φ = 210277416960.

The previous prime is 421403171393. The next prime is 421403171417. The reversal of 421403171404 is 404171304124.

It is a happy number.

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, 5791819 + ... + 5864125.

It is an arithmetic number, because the mean of its divisors is an integer number (30789216402).

Almost surely, 2^421403171404 is an apocalyptic number.

It is an amenable number.

421403171404 is a deficient number, since it is larger than the sum of its proper divisors (317538022244).

421403171404 is a wasteful number, since it uses less digits than its factorization.

421403171404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75225 (or 75223 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 421403171404 its reverse (404171304124), we get a palindrome (825574475528).

The spelling of 421403171404 in words is "four hundred twenty-one billion, four hundred three million, one hundred seventy-one thousand, four hundred four".