421807473800 has 48 divisors (see below), whose sum is σ = 980769862500. Its totient is φ = 168711379200.

The previous prime is 421807473799. The next prime is 421807473811. The reversal of 421807473800 is 8374708124.

It can be written as a sum of positive squares in 6 ways, for example, as 6584356 + 421800889444 = 2566^2 + 649462^2 .

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 11 ways as a sum of consecutive naturals, for example, 3211826 + ... + 3340574.

Almost surely, 2^421807473800 is an apocalyptic number.

421807473800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421807473800 is an abundant number, since it is smaller than the sum of its proper divisors (558962388700).

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

421807473800 is a wasteful number, since it uses less digits than its factorization.

421807473800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145146 (or 145137 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 421807473800 in words is "four hundred twenty-one billion, eight hundred seven million, four hundred seventy-three thousand, eight hundred".