342392639 has 4 divisors (see below), whose sum is σ = 343928256. Its totient is φ = 340857024.

The previous prime is 342392629. The next prime is 342392641. The reversal of 342392639 is 936293243.

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 342392639 - 2⁴ = 342392623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342392596 and 342392605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342392629) 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, 767474 + ... + 767919.

It is an arithmetic number, because the mean of its divisors is an integer number (85982064).

Almost surely, 2^342392639 is an apocalyptic number.

342392639 is a deficient number, since it is larger than the sum of its proper divisors (1535617).

342392639 is a wasteful number, since it uses less digits than its factorization.

342392639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535616.

The product of its digits is 209952, while the sum is 41.

The square root of 342392639 is about 18503.8547065199. The cubic root of 342392639 is about 699.5865851400.

The spelling of 342392639 in words is "three hundred forty-two million, three hundred ninety-two thousand, six hundred thirty-nine".