340221422 has 8 divisors (see below), whose sum is σ = 513712272. Its totient is φ = 168984000.

The previous prime is 340221379. The next prime is 340221433. The reversal of 340221422 is 224122043.

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 = 340221394 and 340221403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562979 + ... + 563582.

It is an arithmetic number, because the mean of its divisors is an integer number (64214034).

Almost surely, 2^340221422 is an apocalyptic number.

340221422 is a deficient number, since it is larger than the sum of its proper divisors (173490850).

340221422 is a wasteful number, since it uses less digits than its factorization.

340221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126714.

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

The square root of 340221422 is about 18445.0920843459. The cubic root of 340221422 is about 698.1046837679.

Adding to 340221422 its reverse (224122043), we get a palindrome (564343465).

The spelling of 340221422 in words is "three hundred forty million, two hundred twenty-one thousand, four hundred twenty-two".