421204200 has 48 divisors (see below), whose sum is σ = 1305734880. Its totient is φ = 112320960.

The previous prime is 421204181. The next prime is 421204219. The reversal of 421204200 is 2402124.

It is an interprime number because it is at equal distance from previous prime (421204181) and next prime (421204219).

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 421204200.

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, 350404 + ... + 351603.

It is an arithmetic number, because the mean of its divisors is an integer number (27202810).

Almost surely, 2^421204200 is an apocalyptic number.

421204200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421204200 is an abundant number, since it is smaller than the sum of its proper divisors (884530680).

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

421204200 is a wasteful number, since it uses less digits than its factorization.

421204200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702026 (or 702017 counting only the distinct ones).

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

The square root of 421204200 is about 20523.2599749650. The cubic root of 421204200 is about 749.6022780158.

Adding to 421204200 its reverse (2402124), we get a palindrome (423606324).

The spelling of 421204200 in words is "four hundred twenty-one million, two hundred four thousand, two hundred".