12428258 has 8 divisors (see below), whose sum is σ = 19739052. Its totient is φ = 5848576.

The previous prime is 12428243. The next prime is 12428279. The reversal of 12428258 is 85282421.

It can be written as a sum of positive squares in 2 ways, for example, as 11744329 + 683929 = 3427^2 + 827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182735 + ... + 182802.

Almost surely, 2^12428258 is an apocalyptic number.

12428258 is a deficient number, since it is larger than the sum of its proper divisors (7310794).

12428258 is a wasteful number, since it uses less digits than its factorization.

12428258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365556.

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

The square root of 12428258 is about 3525.3734553945. The cubic root of 12428258 is about 231.6345937231.

It can be divided in two parts, 124 and 28258, that added together give a palindrome (28382).

The spelling of 12428258 in words is "twelve million, four hundred twenty-eight thousand, two hundred fifty-eight".