12442258 has 8 divisors (see below), whose sum is σ = 18678528. Its totient is φ = 6216084.

The previous prime is 12442237. The next prime is 12442259. The reversal of 12442258 is 85224421.

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

It is not an unprimeable number, because it can be changed into a prime (12442259) 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, 2835 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (2334816).

Almost surely, 2^12442258 is an apocalyptic number.

12442258 is a deficient number, since it is larger than the sum of its proper divisors (6236270).

12442258 is a wasteful number, since it uses less digits than its factorization.

12442258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048.

The product of its digits is 5120, while the sum is 28.

The square root of 12442258 is about 3527.3585017687. The cubic root of 12442258 is about 231.7215371871.

Adding to 12442258 its reverse (85224421), we get a palindrome (97666679).

It can be divided in two parts, 12 and 442258, that added together give a triangular number (442270 = T₉₄₀).

The spelling of 12442258 in words is "twelve million, four hundred forty-two thousand, two hundred fifty-eight".