853489240 has 16 divisors (see below), whose sum is σ = 1920350880. Its totient is φ = 341395680.

The previous prime is 853489211. The next prime is 853489243. The reversal of 853489240 is 42984358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853489243) 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 3 ways as a sum of consecutive naturals, for example, 10668576 + ... + 10668655.

It is an arithmetic number, because the mean of its divisors is an integer number (120021930).

Almost surely, 2^853489240 is an apocalyptic number.

It is an amenable number.

853489240 is an abundant number, since it is smaller than the sum of its proper divisors (1066861640).

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

853489240 is a wasteful number, since it uses less digits than its factorization.

853489240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21337242 (or 21337238 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 853489240 is about 29214.5381616756. The cubic root of 853489240 is about 948.5626426151.

The spelling of 853489240 in words is "eight hundred fifty-three million, four hundred eighty-nine thousand, two hundred forty".