421320422 has 8 divisors (see below), whose sum is σ = 633490200. Its totient is φ = 210157024.

The previous prime is 421320409. The next prime is 421320437. The reversal of 421320422 is 224023124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 421320394 and 421320403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250547 + ... + 252222.

It is an arithmetic number, because the mean of its divisors is an integer number (79186275).

Almost surely, 2^421320422 is an apocalyptic number.

421320422 is a deficient number, since it is larger than the sum of its proper divisors (212169778).

421320422 is a wasteful number, since it uses less digits than its factorization.

421320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503190.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 421320422 is about 20526.0912499190. The cubic root of 421320422 is about 749.6712170753.

Adding to 421320422 its reverse (224023124), we get a palindrome (645343546).

The spelling of 421320422 in words is "four hundred twenty-one million, three hundred twenty thousand, four hundred twenty-two".