422330421 has 4 divisors (see below), whose sum is σ = 563107232. Its totient is φ = 281553612.

The previous prime is 422330417. The next prime is 422330431. The reversal of 422330421 is 124033224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 422330421 - 2² = 422330417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422330431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70388401 + ... + 70388406.

It is an arithmetic number, because the mean of its divisors is an integer number (140776808).

Almost surely, 2^422330421 is an apocalyptic number.

It is an amenable number.

422330421 is a deficient number, since it is larger than the sum of its proper divisors (140776811).

422330421 is a wasteful number, since it uses less digits than its factorization.

422330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140776810.

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

The square root of 422330421 is about 20550.6793318372. The cubic root of 422330421 is about 750.2697820563.

Adding to 422330421 its reverse (124033224), we get a palindrome (546363645).

The spelling of 422330421 in words is "four hundred twenty-two million, three hundred thirty thousand, four hundred twenty-one".