12403442 has 16 divisors (see below), whose sum is σ = 19038912. Its totient is φ = 6058800.

The previous prime is 12403439. The next prime is 12403451. The reversal of 12403442 is 24430421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19928 + ... + 20540.

It is an arithmetic number, because the mean of its divisors is an integer number (1189932).

Almost surely, 2^12403442 is an apocalyptic number.

12403442 is a deficient number, since it is larger than the sum of its proper divisors (6635470).

12403442 is a wasteful number, since it uses less digits than its factorization.

12403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 12403442 is about 3521.8520695793. The cubic root of 12403442 is about 231.4803196421.

Adding to 12403442 its reverse (24430421), we get a palindrome (36833863).

The spelling of 12403442 in words is "twelve million, four hundred three thousand, four hundred forty-two".