421005040200 has 288 divisors, whose sum is σ = 1453935662400. Its totient is φ = 109094791680.

The previous prime is 421005040189. The next prime is 421005040213. The reversal of 421005040200 is 2040500124.

421005040200 is a `hidden beast` number, since 4 + 210 + 0 + 50 + 402 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 58804221 + ... + 58811379.

Almost surely, 2^421005040200 is an apocalyptic number.

421005040200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421005040200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726967831200).

421005040200 is an abundant number, since it is smaller than the sum of its proper divisors (1032930622200).

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

421005040200 is a wasteful number, since it uses less digits than its factorization.

421005040200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101 (or 8089 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 421005040200 its reverse (2040500124), we get a palindrome (423045540324).

The spelling of 421005040200 in words is "four hundred twenty-one billion, five million, forty thousand, two hundred".