342904856 has 64 divisors (see below), whose sum is σ = 790041600. Its totient is φ = 136242432.

The previous prime is 342904847. The next prime is 342904883. The reversal of 342904856 is 658409243.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46580 + ... + 53436.

It is an arithmetic number, because the mean of its divisors is an integer number (12344400).

Almost surely, 2^342904856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342904856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395020800).

342904856 is an abundant number, since it is smaller than the sum of its proper divisors (447136744).

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

342904856 is a wasteful number, since it uses less digits than its factorization.

342904856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936 (or 6932 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 342904856 is about 18517.6903527411. The cubic root of 342904856 is about 699.9352702050.

The spelling of 342904856 in words is "three hundred forty-two million, nine hundred four thousand, eight hundred fifty-six".