16242403 has 2 divisors, whose sum is σ = 16242404. Its totient is φ = 16242402.

The previous prime is 16242377. The next prime is 16242431. The reversal of 16242403 is 30424261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16242403 - 2⁹ = 16241891 is a prime.

It is not a weakly prime, because it can be changed into another prime (16242103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121201 + 8121202.

It is an arithmetic number, because the mean of its divisors is an integer number (8121202).

Almost surely, 2^16242403 is an apocalyptic number.

16242403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16242403 is an equidigital number, since it uses as much as digits as its factorization.

16242403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 16242403 is about 4030.1864721127. The cubic root of 16242403 is about 253.2503731511.

Adding to 16242403 its reverse (30424261), we get a palindrome (46666664).

The spelling of 16242403 in words is "sixteen million, two hundred forty-two thousand, four hundred three".