342661329 has 12 divisors (see below), whose sum is σ = 508332916. Its totient is φ = 222266592.

The previous prime is 342661309. The next prime is 342661331. The reversal of 342661329 is 923166243.

342661329 is a `hidden beast` number, since 34 + 2 + 6 + 613 + 2 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 234916929 + 107744400 = 15327^2 + 10380^2 .

It is not a de Polignac number, because 342661329 - 2¹⁶ = 342595793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342661293 and 342661302.

It is not an unprimeable number, because it can be changed into a prime (342661309) 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 11 ways as a sum of consecutive naturals, for example, 514174 + ... + 514839.

Almost surely, 2^342661329 is an apocalyptic number.

It is an amenable number.

342661329 is a deficient number, since it is larger than the sum of its proper divisors (165671587).

342661329 is a wasteful number, since it uses less digits than its factorization.

342661329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029056 (or 1029053 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 342661329 is about 18511.1136617979. The cubic root of 342661329 is about 699.7695356961.

The spelling of 342661329 in words is "three hundred forty-two million, six hundred sixty-one thousand, three hundred twenty-nine".