342505518 has 16 divisors (see below), whose sum is σ = 687542016. Its totient is φ = 113746680.

The previous prime is 342505517. The next prime is 342505523. The reversal of 342505518 is 815505243.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342505517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 103696 + ... + 106947.

It is an arithmetic number, because the mean of its divisors is an integer number (42971376).

Almost surely, 2^342505518 is an apocalyptic number.

342505518 is an abundant number, since it is smaller than the sum of its proper divisors (345036498).

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

342505518 is a wasteful number, since it uses less digits than its factorization.

342505518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210919.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 342505518 is about 18506.9046034176. The cubic root of 342505518 is about 699.6634559103.

The spelling of 342505518 in words is "three hundred forty-two million, five hundred five thousand, five hundred eighteen".