857243800 has 48 divisors (see below), whose sum is σ = 2277822960. Its totient is φ = 293911680.

The previous prime is 857243789. The next prime is 857243809. The reversal of 857243800 is 8342758.

It is a self number, because there is not a number n which added to its sum of digits gives 857243800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857243809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304759 + ... + 307558.

It is an arithmetic number, because the mean of its divisors is an integer number (47454645).

Almost surely, 2^857243800 is an apocalyptic number.

It is an amenable number.

857243800 is an abundant number, since it is smaller than the sum of its proper divisors (1420579160).

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

857243800 is a wasteful number, since it uses less digits than its factorization.

857243800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612340 (or 612331 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 857243800 is about 29278.7260651825. The cubic root of 857243800 is about 949.9515395410.

The spelling of 857243800 in words is "eight hundred fifty-seven million, two hundred forty-three thousand, eight hundred".