12282458 has 4 divisors (see below), whose sum is σ = 18423690. Its totient is φ = 6141228.

The previous prime is 12282451. The next prime is 12282499. The reversal of 12282458 is 85428221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85428221 = 229 ⋅373049.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 11449 = 3503^2 + 107^2 .

It is not an unprimeable number, because it can be changed into a prime (12282451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070613 + ... + 3070616.

Almost surely, 2^12282458 is an apocalyptic number.

12282458 is a deficient number, since it is larger than the sum of its proper divisors (6141232).

12282458 is an equidigital number, since it uses as much as digits as its factorization.

12282458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141231.

The product of its digits is 10240, while the sum is 32.

The square root of 12282458 is about 3504.6337897133. The cubic root of 12282458 is about 230.7252344217.

The spelling of 12282458 in words is "twelve million, two hundred eighty-two thousand, four hundred fifty-eight".