850388850 has 36 divisors (see below), whose sum is σ = 2284712586. Its totient is φ = 226770240.

The previous prime is 850388849. The next prime is 850388863. The reversal of 850388850 is 58883058.

It can be written as a sum of positive squares in 3 ways, for example, as 819619641 + 30769209 = 28629^2 + 5547^2 .

It is a super-2 number, since 2×850388850² = 1446322392408645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 850388796 and 850388805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 944427 + ... + 945326.

Almost surely, 2^850388850 is an apocalyptic number.

850388850 is an abundant number, since it is smaller than the sum of its proper divisors (1434323736).

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

850388850 is a wasteful number, since it uses less digits than its factorization.

850388850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889771 (or 1889763 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 850388850 is about 29161.4274341981. The cubic root of 850388850 is about 947.4126642837.

The spelling of 850388850 in words is "eight hundred fifty million, three hundred eighty-eight thousand, eight hundred fifty".