422340421 has 8 divisors (see below), whose sum is σ = 440910720. Its totient is φ = 403787472.

The previous prime is 422340419. The next prime is 422340439. The reversal of 422340421 is 124043224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 422340421 - 2¹ = 422340419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422340392 and 422340401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422340461) 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, 83400 + ... + 88318.

It is an arithmetic number, because the mean of its divisors is an integer number (55113840).

Almost surely, 2^422340421 is an apocalyptic number.

It is an amenable number.

422340421 is a deficient number, since it is larger than the sum of its proper divisors (18570299).

422340421 is a wasteful number, since it uses less digits than its factorization.

422340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 422340421 is about 20550.9226313565. The cubic root of 422340421 is about 750.2757036746.

Adding to 422340421 its reverse (124043224), we get a palindrome (546383645).

It can be divided in two parts, 4223 and 40421, that added together give a palindrome (44644).

The spelling of 422340421 in words is "four hundred twenty-two million, three hundred forty thousand, four hundred twenty-one".