850870242 has 24 divisors (see below), whose sum is σ = 1849855644. Its totient is φ = 282653664.

The previous prime is 850870231. The next prime is 850870249. The reversal of 850870242 is 242078058.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 842798961 + 8071281 = 29031^2 + 2841^2 .

It is a super-2 number, since 2×850870242² = 1447960337442277128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 850870197 and 850870206.

It is not an unprimeable number, because it can be changed into a prime (850870249) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 75393 + ... + 85940.

Almost surely, 2^850870242 is an apocalyptic number.

850870242 is an abundant number, since it is smaller than the sum of its proper divisors (998985402).

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

850870242 is a wasteful number, since it uses less digits than its factorization.

850870242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161634 (or 161631 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 850870242 is about 29169.6801833685. The cubic root of 850870242 is about 947.5914024554.

The spelling of 850870242 in words is "eight hundred fifty million, eight hundred seventy thousand, two hundred forty-two".