8442458 has 4 divisors (see below), whose sum is σ = 12663690. Its totient is φ = 4221228.

The previous prime is 8442457. The next prime is 8442481. The reversal of 8442458 is 8542448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5031049 + 3411409 = 2243^2 + 1847^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8442457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110613 + ... + 2110616.

Almost surely, 2^8442458 is an apocalyptic number.

8442458 is a deficient number, since it is larger than the sum of its proper divisors (4221232).

8442458 is a wasteful number, since it uses less digits than its factorization.

8442458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221231.

The product of its digits is 40960, while the sum is 35.

The square root of 8442458 is about 2905.5908177168. The cubic root of 8442458 is about 203.6211892368.

The spelling of 8442458 in words is "eight million, four hundred forty-two thousand, four hundred fifty-eight".