852745420 has 24 divisors (see below), whose sum is σ = 1801495584. Its totient is φ = 339054336.

The previous prime is 852745409. The next prime is 852745423. The reversal of 852745420 is 24547258.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 852745420.

It is not an unprimeable number, because it can be changed into a prime (852745423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124317 + ... + 130996.

It is an arithmetic number, because the mean of its divisors is an integer number (75062316).

Almost surely, 2^852745420 is an apocalyptic number.

It is an amenable number.

852745420 is an abundant number, since it is smaller than the sum of its proper divisors (948750164).

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

852745420 is a wasteful number, since it uses less digits than its factorization.

852745420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255489 (or 255487 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 852745420 is about 29201.8050811932. The cubic root of 852745420 is about 948.2870035492.

The spelling of 852745420 in words is "eight hundred fifty-two million, seven hundred forty-five thousand, four hundred twenty".