421324430 has 48 divisors (see below), whose sum is σ = 848130480. Its totient is φ = 150248448.

The previous prime is 421324361. The next prime is 421324433. The reversal of 421324430 is 34423124.

It is a junction number, because it is equal to n+sod(n) for n = 421324396 and 421324405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421324433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51074 + ... + 58746.

It is an arithmetic number, because the mean of its divisors is an integer number (17669385).

Almost surely, 2^421324430 is an apocalyptic number.

421324430 is an abundant number, since it is smaller than the sum of its proper divisors (426806050).

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

421324430 is a wasteful number, since it uses less digits than its factorization.

421324430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 421324430 is about 20526.1888815240. The cubic root of 421324430 is about 749.6735942626.

Adding to 421324430 its reverse (34423124), we get a palindrome (455747554).

The spelling of 421324430 in words is "four hundred twenty-one million, three hundred twenty-four thousand, four hundred thirty".