857490282 has 48 divisors (see below), whose sum is σ = 2047735872. Its totient is φ = 257160960.

The previous prime is 857490259. The next prime is 857490289. The reversal of 857490282 is 282094758.

857490282 is a `hidden beast` number, since 85 + 7 + 490 + 2 + 82 = 666.

It is not an unprimeable number, because it can be changed into a prime (857490289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3118 + ... + 41529.

It is an arithmetic number, because the mean of its divisors is an integer number (42661164).

Almost surely, 2^857490282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857490282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023867936).

857490282 is an abundant number, since it is smaller than the sum of its proper divisors (1190245590).

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

857490282 is a wasteful number, since it uses less digits than its factorization.

857490282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44763 (or 44760 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 857490282 is about 29282.9349963422. The cubic root of 857490282 is about 950.0425768545.

The spelling of 857490282 in words is "eight hundred fifty-seven million, four hundred ninety thousand, two hundred eighty-two".