855434418 has 8 divisors (see below), whose sum is σ = 1710868848. Its totient is φ = 285144804.

The previous prime is 855434401. The next prime is 855434443. The reversal of 855434418 is 814434558.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

855434418 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 855434418.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71286196 + ... + 71286207.

It is an arithmetic number, because the mean of its divisors is an integer number (213858606).

Almost surely, 2^855434418 is an apocalyptic number.

855434418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

855434418 is a wasteful number, since it uses less digits than its factorization.

855434418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142572408.

The product of its digits is 307200, while the sum is 42.

The square root of 855434418 is about 29247.8104821540. The cubic root of 855434418 is about 949.2827154394.

The spelling of 855434418 in words is "eight hundred fifty-five million, four hundred thirty-four thousand, four hundred eighteen".