422259421 has 4 divisors (see below), whose sum is σ = 431243712. Its totient is φ = 413275132.

The previous prime is 422259361. The next prime is 422259433. The reversal of 422259421 is 124952224.

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 a cyclic number.

It is not a de Polignac number, because 422259421 - 2¹⁷ = 422128349 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 (422259491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4492075 + ... + 4492168.

It is an arithmetic number, because the mean of its divisors is an integer number (107810928).

Almost surely, 2^422259421 is an apocalyptic number.

It is an amenable number.

422259421 is a deficient number, since it is larger than the sum of its proper divisors (8984291).

422259421 is an equidigital number, since it uses as much as digits as its factorization.

422259421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8984290.

The product of its digits is 11520, while the sum is 31.

The square root of 422259421 is about 20548.9518224166. The cubic root of 422259421 is about 750.2277358785.

The spelling of 422259421 in words is "four hundred twenty-two million, two hundred fifty-nine thousand, four hundred twenty-one".