342691439 has 4 divisors (see below), whose sum is σ = 343108656. Its totient is φ = 342274224.

The previous prime is 342691409. The next prime is 342691441. The reversal of 342691439 is 934196243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342691439 - 2²⁴ = 325914223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342691396 and 342691405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342691409) 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, 207374 + ... + 209019.

It is an arithmetic number, because the mean of its divisors is an integer number (85777164).

Almost surely, 2^342691439 is an apocalyptic number.

342691439 is a deficient number, since it is larger than the sum of its proper divisors (417217).

342691439 is an equidigital number, since it uses as much as digits as its factorization.

342691439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417216.

The product of its digits is 139968, while the sum is 41.

The square root of 342691439 is about 18511.9269391385. The cubic root of 342691439 is about 699.7900315831.

The spelling of 342691439 in words is "three hundred forty-two million, six hundred ninety-one thousand, four hundred thirty-nine".