12421042 has 8 divisors (see below), whose sum is σ = 18658332. Its totient is φ = 6201600.

The previous prime is 12421039. The next prime is 12421051. The reversal of 12421042 is 24012421.

It can be written as a sum of positive squares in 2 ways, for example, as 10233601 + 2187441 = 3199^2 + 1479^2 .

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, 2559 + ... + 5602.

Almost surely, 2^12421042 is an apocalyptic number.

12421042 is a deficient number, since it is larger than the sum of its proper divisors (6237290).

12421042 is an equidigital number, since it uses as much as digits as its factorization.

12421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12421042 is about 3524.3498691248. The cubic root of 12421042 is about 231.5897550759.

Adding to 12421042 its reverse (24012421), we get a palindrome (36433463).

The spelling of 12421042 in words is "twelve million, four hundred twenty-one thousand, forty-two".