857142230 has 16 divisors (see below), whose sum is σ = 1763264160. Its totient is φ = 293877312.

The previous prime is 857142217. The next prime is 857142271. The reversal of 857142230 is 32241758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6122375 + ... + 6122514.

It is an arithmetic number, because the mean of its divisors is an integer number (110204010).

Almost surely, 2^857142230 is an apocalyptic number.

857142230 is an abundant number, since it is smaller than the sum of its proper divisors (906121930).

857142230 is a wasteful number, since it uses less digits than its factorization.

857142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244903.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 857142230 is about 29276.9914779507. The cubic root of 857142230 is about 949.9140199194.

Adding to 857142230 its reverse (32241758), we get a palindrome (889383988).

The spelling of 857142230 in words is "eight hundred fifty-seven million, one hundred forty-two thousand, two hundred thirty".