421040204 has 24 divisors (see below), whose sum is σ = 794364480. Its totient is φ = 194114304.

The previous prime is 421040203. The next prime is 421040227. The reversal of 421040204 is 402040124.

It is not an unprimeable number, because it can be changed into a prime (421040203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50132 + ... + 57924.

It is an arithmetic number, because the mean of its divisors is an integer number (33098520).

Almost surely, 2^421040204 is an apocalyptic number.

It is an amenable number.

421040204 is a deficient number, since it is larger than the sum of its proper divisors (373324276).

421040204 is a wasteful number, since it uses less digits than its factorization.

421040204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849 (or 8847 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 421040204 is about 20519.2642168280. The cubic root of 421040204 is about 749.5049794188.

Adding to 421040204 its reverse (402040124), we get a palindrome (823080328).

The spelling of 421040204 in words is "four hundred twenty-one million, forty thousand, two hundred four".