342239886 has 48 divisors (see below), whose sum is σ = 796904784. Its totient is φ = 105760512.

The previous prime is 342239879. The next prime is 342239897. The reversal of 342239886 is 688932243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12156 + ... + 28848.

It is an arithmetic number, because the mean of its divisors is an integer number (16602183).

Almost surely, 2^342239886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342239886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398452392).

342239886 is an abundant number, since it is smaller than the sum of its proper divisors (454664898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342239886 is a wasteful number, since it uses less digits than its factorization.

342239886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16785 (or 16782 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 342239886 is about 18499.7266466291. The cubic root of 342239886 is about 699.4825332093.

The spelling of 342239886 in words is "three hundred forty-two million, two hundred thirty-nine thousand, eight hundred eighty-six".