842500 has 30 divisors (see below), whose sum is σ = 1847846. Its totient is φ = 336000.

The previous prime is 842497. The next prime is 842507. The reversal of 842500 is 5248.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 430336 + 412164 = 656^2 + 642^2 .

It is not an unprimeable number, because it can be changed into a prime (842507) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2332 + ... + 2668.

2⁸⁴²⁵⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923923).

842500 is an abundant number, since it is smaller than the sum of its proper divisors (1005346).

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

842500 is a wasteful number, since it uses less digits than its factorization.

842500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 842500 is about 917.8779875343. The cubic root of 842500 is about 94.4473919367.

Adding to 842500 its reverse (5248), we get a palindrome (847748).

The spelling of 842500 in words is "eight hundred forty-two thousand, five hundred".