342430009 has 2 divisors, whose sum is σ = 342430010. Its totient is φ = 342430008.

The previous prime is 342430007. The next prime is 342430021. The reversal of 342430009 is 900034243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324180025 + 18249984 = 18005^2 + 4272^2 .

It is a cyclic number.

It is not a de Polignac number, because 342430009 - 2¹ = 342430007 is a prime.

It is a super-2 number, since 2×342430009² = 234516622127480162, which contains 22 as substring.

Together with 342430007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (342430007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171215004 + 171215005.

It is an arithmetic number, because the mean of its divisors is an integer number (171215005).

Almost surely, 2^342430009 is an apocalyptic number.

It is an amenable number.

342430009 is a deficient number, since it is larger than the sum of its proper divisors (1).

342430009 is an equidigital number, since it uses as much as digits as its factorization.

342430009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 342430009 is about 18504.8644685661. The cubic root of 342430009 is about 699.6120360372.

It can be divided in two parts, 3424 and 30009, that added together give a palindrome (33433).

The spelling of 342430009 in words is "three hundred forty-two million, four hundred thirty thousand, nine".