342509439 has 8 divisors (see below), whose sum is σ = 456969520. Its totient is φ = 228194496.

The previous prime is 342509423. The next prime is 342509471. The reversal of 342509439 is 934905243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 342509439 - 2⁴ = 342509423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342509397 and 342509406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342509239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30652 + ... + 40305.

It is an arithmetic number, because the mean of its divisors is an integer number (57121190).

Almost surely, 2^342509439 is an apocalyptic number.

342509439 is a deficient number, since it is larger than the sum of its proper divisors (114460081).

342509439 is a wasteful number, since it uses less digits than its factorization.

342509439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72569.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 342509439 is about 18507.0105365507. The cubic root of 342509439 is about 699.6661258137. Note that the first 3 decimals are identical.

The spelling of 342509439 in words is "three hundred forty-two million, five hundred nine thousand, four hundred thirty-nine".