852240 has 80 divisors (see below), whose sum is σ = 2731968. Its totient is φ = 219648.

The previous prime is 852239. The next prime is 852253. The reversal of 852240 is 42258.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12687 + ... + 12753.

2⁸⁵²²⁴⁰ is an apocalyptic number.

852240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 852240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365984).

852240 is an abundant number, since it is smaller than the sum of its proper divisors (1879728).

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

852240 is a wasteful number, since it uses less digits than its factorization.

852240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 852240 is about 923.1684570001. The cubic root of 852240 is about 94.8099617440.

Adding to 852240 its reverse (42258), we get a palindrome (894498).

It can be divided in two parts, 852 and 240, that multiplied together give a triangular number (204480 = T₆₃₉).

The spelling of 852240 in words is "eight hundred fifty-two thousand, two hundred forty".