849771444 has 24 divisors (see below), whose sum is σ = 1983422560. Its totient is φ = 283168224.

The previous prime is 849771443. The next prime is 849771451. The reversal of 849771444 is 444177948.

It is a super-2 number, since 2×849771444² = 1444223014075690272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 849771393 and 849771402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849771443) 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, 37047 + ... + 55425.

Almost surely, 2^849771444 is an apocalyptic number.

It is an amenable number.

849771444 is an abundant number, since it is smaller than the sum of its proper divisors (1133651116).

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

849771444 is a wasteful number, since it uses less digits than its factorization.

849771444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239 (or 22237 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 849771444 is about 29150.8395076368. The cubic root of 849771444 is about 947.1833261085.

The spelling of 849771444 in words is "eight hundred forty-nine million, seven hundred seventy-one thousand, four hundred forty-four".