16242238 has 4 divisors (see below), whose sum is σ = 24363360. Its totient is φ = 8121118.

The previous prime is 16242227. The next prime is 16242251. The reversal of 16242238 is 83224261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 4060558 + ... + 4060561.

It is an arithmetic number, because the mean of its divisors is an integer number (6090840).

Almost surely, 2^16242238 is an apocalyptic number.

16242238 is a deficient number, since it is larger than the sum of its proper divisors (8121122).

16242238 is an equidigital number, since it uses as much as digits as its factorization.

16242238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121121.

The product of its digits is 4608, while the sum is 28.

The square root of 16242238 is about 4030.1660015439. The cubic root of 16242238 is about 253.2495155922.

Adding to 16242238 its reverse (83224261), we get a palindrome (99466499).

The spelling of 16242238 in words is "sixteen million, two hundred forty-two thousand, two hundred thirty-eight".