852040020 has 96 divisors (see below), whose sum is σ = 2575214208. Its totient is φ = 209244672.

The previous prime is 852039967. The next prime is 852040061. The reversal of 852040020 is 20040258.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425662 + ... + 427658.

It is an arithmetic number, because the mean of its divisors is an integer number (26825148).

Almost surely, 2^852040020 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 852040020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287607104).

852040020 is an abundant number, since it is smaller than the sum of its proper divisors (1723174188).

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

852040020 is a wasteful number, since it uses less digits than its factorization.

852040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2567 counting only the distinct ones).

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

The square root of 852040020 is about 29189.7245619071. The cubic root of 852040020 is about 948.0254537487.

Adding to 852040020 its reverse (20040258), we get a palindrome (872080278).

The spelling of 852040020 in words is "eight hundred fifty-two million, forty thousand, twenty".