421343422 has 16 divisors (see below), whose sum is σ = 639010944. Its totient is φ = 208351000.

The previous prime is 421343389. The next prime is 421343431. The reversal of 421343422 is 224343124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78897 + ... + 84067.

It is an arithmetic number, because the mean of its divisors is an integer number (39938184).

Almost surely, 2^421343422 is an apocalyptic number.

421343422 is a deficient number, since it is larger than the sum of its proper divisors (217667522).

421343422 is a wasteful number, since it uses less digits than its factorization.

421343422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615.

The product of its digits is 4608, while the sum is 25.

The square root of 421343422 is about 20526.6515048120. The cubic root of 421343422 is about 749.6848584144.

Adding to 421343422 its reverse (224343124), we get a palindrome (645686546).

The spelling of 421343422 in words is "four hundred twenty-one million, three hundred forty-three thousand, four hundred twenty-two".