342023221 has 4 divisors (see below), whose sum is σ = 362142252. Its totient is φ = 321904192.

The previous prime is 342023219. The next prime is 342023239. The reversal of 342023221 is 122320243.

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 120340900 + 221682321 = 10970^2 + 14889^2 .

It is a cyclic number.

It is not a de Polignac number, because 342023221 - 2¹ = 342023219 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 (342023251) 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, 10059490 + ... + 10059523.

It is an arithmetic number, because the mean of its divisors is an integer number (90535563).

Almost surely, 2^342023221 is an apocalyptic number.

It is an amenable number.

342023221 is a deficient number, since it is larger than the sum of its proper divisors (20119031).

342023221 is a wasteful number, since it uses less digits than its factorization.

342023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20119030.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 342023221 is about 18493.8698221870. The cubic root of 342023221 is about 699.3348927361.

Adding to 342023221 its reverse (122320243), we get a palindrome (464343464).

The spelling of 342023221 in words is "three hundred forty-two million, twenty-three thousand, two hundred twenty-one".