421041800 has 24 divisors (see below), whose sum is σ = 978922650. Its totient is φ = 168416640.

The previous prime is 421041799. The next prime is 421041883. The reversal of 421041800 is 8140124.

421041800 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 228553924 + 192487876 = 15118^2 + 13874^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1052405 + ... + 1052804.

Almost surely, 2^421041800 is an apocalyptic number.

421041800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421041800 is an abundant number, since it is smaller than the sum of its proper divisors (557880850).

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

421041800 is a wasteful number, since it uses less digits than its factorization.

421041800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105225 (or 2105216 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 421041800 is about 20519.3031070746. The cubic root of 421041800 is about 749.5059264451.

Adding to 421041800 its reverse (8140124), we get a palindrome (429181924).

The spelling of 421041800 in words is "four hundred twenty-one million, forty-one thousand, eight hundred".