16243018 has 8 divisors (see below), whose sum is σ = 26579520. Its totient is φ = 7383180.

The previous prime is 16243013. The next prime is 16243021. The reversal of 16243018 is 81034261.

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

It is a junction number, because it is equal to n+sod(n) for n = 16242983 and 16243001.

It is not an unprimeable number, because it can be changed into a prime (16243013) 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, 369138 + ... + 369181.

It is an arithmetic number, because the mean of its divisors is an integer number (3322440).

Almost surely, 2^16243018 is an apocalyptic number.

16243018 is a deficient number, since it is larger than the sum of its proper divisors (10336502).

16243018 is a wasteful number, since it uses less digits than its factorization.

16243018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738332.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16243018 is about 4030.2627705895. The cubic root of 16243018 is about 253.2535694559.

Adding to 16243018 its reverse (81034261), we get a palindrome (97277279).

The spelling of 16243018 in words is "sixteen million, two hundred forty-three thousand, eighteen".