342485639 has 4 divisors (see below), whose sum is σ = 346612056. Its totient is φ = 338359224.

The previous prime is 342485623. The next prime is 342485651. The reversal of 342485639 is 936584243.

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 342485639 - 2⁴ = 342485623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342485639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342485699) 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, 2063084 + ... + 2063249.

It is an arithmetic number, because the mean of its divisors is an integer number (86653014).

Almost surely, 2^342485639 is an apocalyptic number.

342485639 is a deficient number, since it is larger than the sum of its proper divisors (4126417).

342485639 is an equidigital number, since it uses as much as digits as its factorization.

342485639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126416.

The product of its digits is 622080, while the sum is 44.

The square root of 342485639 is about 18506.3675258004. The cubic root of 342485639 is about 699.6499195065.

The spelling of 342485639 in words is "three hundred forty-two million, four hundred eighty-five thousand, six hundred thirty-nine".