849240 has 96 divisors (see below), whose sum is σ = 3163680. Its totient is φ = 193536.

The previous prime is 849223. The next prime is 849241. The reversal of 849240 is 42948.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 849240.

It is not an unprimeable number, because it can be changed into a prime (849241) by changing a digit.

849240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2352 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (32955).

2⁸⁴⁹²⁴⁰ 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 849240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581840).

849240 is an abundant number, since it is smaller than the sum of its proper divisors (2314440).

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

849240 is a wasteful number, since it uses less digits than its factorization.

849240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 849240 is about 921.5421856866. The cubic root of 849240 is about 94.6985829918.

It can be divided in two parts, 849 and 240, that added together give a square (1089 = 33²).

The spelling of 849240 in words is "eight hundred forty-nine thousand, two hundred forty".