342216029 has 2 divisors, whose sum is σ = 342216030. Its totient is φ = 342216028.

The previous prime is 342215987. The next prime is 342216031. The reversal of 342216029 is 920612243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259951129 + 82264900 = 16123^2 + 9070^2 .

It is a cyclic number.

It is not a de Polignac number, because 342216029 - 2⁸ = 342215773 is a prime.

It is a super-2 number, since 2×342216029² = 234223621009057682, which contains 22 as substring.

Together with 342216031, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_18407612 and since 342216029 and 18407612 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 342215992 and 342216010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342216079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171108014 + 171108015.

It is an arithmetic number, because the mean of its divisors is an integer number (171108015).

Almost surely, 2^342216029 is an apocalyptic number.

It is an amenable number.

342216029 is a deficient number, since it is larger than the sum of its proper divisors (1).

342216029 is an equidigital number, since it uses as much as digits as its factorization.

342216029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 342216029 is about 18499.0818420807. The cubic root of 342216029 is about 699.4662795587.

The spelling of 342216029 in words is "three hundred forty-two million, two hundred sixteen thousand, twenty-nine".