8442281 has 4 divisors (see below), whose sum is σ = 8621952. Its totient is φ = 8262612.

The previous prime is 8442271. The next prime is 8442299. The reversal of 8442281 is 1822448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8442281 is a prime.

It is a super-2 number, since 2×8442281² = 142544216965922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8442221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89765 + ... + 89858.

It is an arithmetic number, because the mean of its divisors is an integer number (2155488).

Almost surely, 2^8442281 is an apocalyptic number.

It is an amenable number.

8442281 is a deficient number, since it is larger than the sum of its proper divisors (179671).

8442281 is a wasteful number, since it uses less digits than its factorization.

8442281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179670.

The product of its digits is 4096, while the sum is 29.

The square root of 8442281 is about 2905.5603590358. The cubic root of 8442281 is about 203.6197662230.

It can be divided in two parts, 844 and 2281, that added together give a 5-th power (3125 = 5⁵).

The spelling of 8442281 in words is "eight million, four hundred forty-two thousand, two hundred eighty-one".