421240200 has 48 divisors (see below), whose sum is σ = 1305846480. Its totient is φ = 112330560.

The previous prime is 421240181. The next prime is 421240213. The reversal of 421240200 is 2042124.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 421240200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350434 + ... + 351633.

It is an arithmetic number, because the mean of its divisors is an integer number (27205135).

Almost surely, 2^421240200 is an apocalyptic number.

421240200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421240200 is an abundant number, since it is smaller than the sum of its proper divisors (884606280).

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

421240200 is a wasteful number, since it uses less digits than its factorization.

421240200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702086 (or 702077 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 421240200 is about 20524.1370098721. The cubic root of 421240200 is about 749.6236333847.

Adding to 421240200 its reverse (2042124), we get a palindrome (423282324).

The spelling of 421240200 in words is "four hundred twenty-one million, two hundred forty thousand, two hundred".