421919224 has 16 divisors (see below), whose sum is σ = 791323920. Its totient is φ = 210899520.

The previous prime is 421919221. The next prime is 421919227. The reversal of 421919224 is 422919124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421919221) and next prime (421919227).

It is a self number, because there is not a number n which added to its sum of digits gives 421919224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421919221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40012 + ... + 49444.

It is an arithmetic number, because the mean of its divisors is an integer number (49457745).

Almost surely, 2^421919224 is an apocalyptic number.

It is an amenable number.

421919224 is a deficient number, since it is larger than the sum of its proper divisors (369404696).

421919224 is a wasteful number, since it uses less digits than its factorization.

421919224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15030 (or 15026 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 421919224 is about 20540.6724330047. The cubic root of 421919224 is about 750.0262058991.

It can be divided in two parts, 42191 and 9224, that added together give a palindrome (51415).

The spelling of 421919224 in words is "four hundred twenty-one million, nine hundred nineteen thousand, two hundred twenty-four".