849439020 has 24 divisors (see below), whose sum is σ = 2378429424. Its totient is φ = 226517056.

The previous prime is 849439009. The next prime is 849439027. The reversal of 849439020 is 20934948.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 849439020.

It is not an unprimeable number, because it can be changed into a prime (849439027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7078599 + ... + 7078718.

It is an arithmetic number, because the mean of its divisors is an integer number (99101226).

Almost surely, 2^849439020 is an apocalyptic number.

It is an amenable number.

849439020 is an abundant number, since it is smaller than the sum of its proper divisors (1528990404).

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

849439020 is a wasteful number, since it uses less digits than its factorization.

849439020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157329 (or 14157327 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 849439020 is about 29145.1371587097. The cubic root of 849439020 is about 947.0597997420.

The spelling of 849439020 in words is "eight hundred forty-nine million, four hundred thirty-nine thousand, twenty".