852140 has 24 divisors (see below), whose sum is σ = 1808352. Its totient is φ = 337280.

The previous prime is 852139. The next prime is 852143. The reversal of 852140 is 41258.

852140 = 126² + 127² + ... + 165².

It is a super-2 number, since 2×852140² = 1452285159200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (852143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2585 + ... + 2895.

It is an arithmetic number, because the mean of its divisors is an integer number (75348).

2⁸⁵²¹⁴⁰ is an apocalyptic number.

It is an amenable number.

852140 is an abundant number, since it is smaller than the sum of its proper divisors (956212).

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

852140 is a wasteful number, since it uses less digits than its factorization.

852140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 852140 is about 923.1142941153. The cubic root of 852140 is about 94.8062533336.

Adding to 852140 its reverse (41258), we get a palindrome (893398).

The spelling of 852140 in words is "eight hundred fifty-two thousand, one hundred forty".