850660944 has 160 divisors (see below), whose sum is σ = 2638878720. Its totient is φ = 230985216.

The previous prime is 850660939. The next prime is 850660963. The reversal of 850660944 is 449066058.

It is a super-2 number, since 2×850660944² = 1447248083293942272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 850660896 and 850660905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652197 + ... + 653499.

It is an arithmetic number, because the mean of its divisors is an integer number (16492992).

Almost surely, 2^850660944 is an apocalyptic number.

850660944 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850660944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319439360).

850660944 is an abundant number, since it is smaller than the sum of its proper divisors (1788217776).

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

850660944 is a wasteful number, since it uses less digits than its factorization.

850660944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 850660944 is about 29166.0923676793. The cubic root of 850660944 is about 947.5136995580.

The spelling of 850660944 in words is "eight hundred fifty million, six hundred sixty thousand, nine hundred forty-four".