342022421 has 4 divisors (see below), whose sum is σ = 368331852. Its totient is φ = 315712992.

The previous prime is 342022403. The next prime is 342022481. The reversal of 342022421 is 124220243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186022321 + 156000100 = 13639^2 + 12490^2 .

It is a cyclic number.

It is not a de Polignac number, because 342022421 - 2²⁶ = 274913557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342022393 and 342022402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342022481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13154696 + ... + 13154721.

It is an arithmetic number, because the mean of its divisors is an integer number (92082963).

Almost surely, 2^342022421 is an apocalyptic number.

It is an amenable number.

342022421 is a deficient number, since it is larger than the sum of its proper divisors (26309431).

342022421 is a wasteful number, since it uses less digits than its factorization.

342022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26309430.

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

The square root of 342022421 is about 18493.8481933858. The cubic root of 342022421 is about 699.3343474824.

Adding to 342022421 its reverse (124220243), we get a palindrome (466242664).

The spelling of 342022421 in words is "three hundred forty-two million, twenty-two thousand, four hundred twenty-one".