421432422 has 16 divisors (see below), whose sum is σ = 862466880. Its totient is φ = 137210472.

The previous prime is 421432421. The next prime is 421432423. The reversal of 421432422 is 224234124.

It is an interprime number because it is at equal distance from previous prime (421432421) and next prime (421432423).

It is a junction number, because it is equal to n+sod(n) for n = 421432392 and 421432401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421432421) 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, 816472 + ... + 816987.

It is an arithmetic number, because the mean of its divisors is an integer number (53904180).

Almost surely, 2^421432422 is an apocalyptic number.

421432422 is an abundant number, since it is smaller than the sum of its proper divisors (441034458).

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

421432422 is a wasteful number, since it uses less digits than its factorization.

421432422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633507.

The product of its digits is 3072, while the sum is 24.

The square root of 421432422 is about 20528.8193036034. The cubic root of 421432422 is about 749.7376397891.

Adding to 421432422 its reverse (224234124), we get a palindrome (645666546).

The spelling of 421432422 in words is "four hundred twenty-one million, four hundred thirty-two thousand, four hundred twenty-two".