842281 has 6 divisors (see below), whose sum is σ = 925946. Its totient is φ = 765600.

The previous prime is 842279. The next prime is 842291. The reversal of 842281 is 182248.

842281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 793881 + 48400 = 891^2 + 220^2 .

It is not a de Polignac number, because 842281 - 2¹ = 842279 is a prime.

It is a super-2 number, since 2×842281² = 1418874565922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3360 + ... + 3601.

2⁸⁴²²⁸¹ is an apocalyptic number.

It is an amenable number.

842281 is a deficient number, since it is larger than the sum of its proper divisors (83665).

842281 is a wasteful number, since it uses less digits than its factorization.

842281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6972 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 842281 is about 917.7586828791. The cubic root of 842281 is about 94.4392076553.

The spelling of 842281 in words is "eight hundred forty-two thousand, two hundred eighty-one".