857144814 has 8 divisors (see below), whose sum is σ = 1714289640. Its totient is φ = 285714936.

The previous prime is 857144807. The next prime is 857144831. The reversal of 857144814 is 418441758.

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

857144814 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71428729 + ... + 71428740.

It is an arithmetic number, because the mean of its divisors is an integer number (214286205).

Almost surely, 2^857144814 is an apocalyptic number.

857144814 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.

857144814 is a wasteful number, since it uses less digits than its factorization.

857144814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142857474.

The product of its digits is 143360, while the sum is 42.

The square root of 857144814 is about 29277.0356081349. The cubic root of 857144814 is about 949.9149744772.

The spelling of 857144814 in words is "eight hundred fifty-seven million, one hundred forty-four thousand, eight hundred fourteen".