857422334 has 16 divisors (see below), whose sum is σ = 1297363200. Its totient is φ = 424977624.

The previous prime is 857422333. The next prime is 857422369. The reversal of 857422334 is 433224758.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857422331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216827 + ... + 220745.

It is an arithmetic number, because the mean of its divisors is an integer number (81085200).

Almost surely, 2^857422334 is an apocalyptic number.

857422334 is a deficient number, since it is larger than the sum of its proper divisors (439940866).

857422334 is a wasteful number, since it uses less digits than its factorization.

857422334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its digits is 161280, while the sum is 38.

The square root of 857422334 is about 29281.7747754469. The cubic root of 857422334 is about 950.0174822268.

The spelling of 857422334 in words is "eight hundred fifty-seven million, four hundred twenty-two thousand, three hundred thirty-four".