849071420 has 24 divisors (see below), whose sum is σ = 1793733984. Its totient is φ = 337593536.

The previous prime is 849071417. The next prime is 849071453. The reversal of 849071420 is 24170948.

It is a congruent number.

It is an unprimeable number.

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, 123767 + ... + 130446.

It is an arithmetic number, because the mean of its divisors is an integer number (74738916).

Almost surely, 2^849071420 is an apocalyptic number.

It is an amenable number.

849071420 is an abundant number, since it is smaller than the sum of its proper divisors (944662564).

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

849071420 is a wasteful number, since it uses less digits than its factorization.

849071420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254389 (or 254387 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 849071420 is about 29138.8301069209. The cubic root of 849071420 is about 946.9231646977.

The spelling of 849071420 in words is "eight hundred forty-nine million, seventy-one thousand, four hundred twenty".