421232430 has 16 divisors (see below), whose sum is σ = 1010957904. Its totient is φ = 112328640.

The previous prime is 421232381. The next prime is 421232437. The reversal of 421232430 is 34232124.

It is a junction number, because it is equal to n+sod(n) for n = 421232397 and 421232406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421232437) 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, 7020511 + ... + 7020570.

It is an arithmetic number, because the mean of its divisors is an integer number (63184869).

Almost surely, 2^421232430 is an apocalyptic number.

421232430 is an abundant number, since it is smaller than the sum of its proper divisors (589725474).

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

421232430 is a wasteful number, since it uses less digits than its factorization.

421232430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041091.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 421232430 is about 20523.9477196762. The cubic root of 421232430 is about 749.6190242872.

Adding to 421232430 its reverse (34232124), we get a palindrome (455464554).

The spelling of 421232430 in words is "four hundred twenty-one million, two hundred thirty-two thousand, four hundred thirty".