16728245 has 8 divisors (see below), whose sum is σ = 20946816. Its totient is φ = 12800656.

The previous prime is 16728241. The next prime is 16728259. The reversal of 16728245 is 54282761.

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

It is a cyclic number.

It is not a de Polignac number, because 16728245 - 2² = 16728241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16728241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72617 + ... + 72846.

It is an arithmetic number, because the mean of its divisors is an integer number (2618352).

Almost surely, 2^16728245 is an apocalyptic number.

It is an amenable number.

16728245 is a deficient number, since it is larger than the sum of its proper divisors (4218571).

16728245 is a wasteful number, since it uses less digits than its factorization.

16728245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145491.

The product of its digits is 26880, while the sum is 35.

The square root of 16728245 is about 4090.0177261230. The cubic root of 16728245 is about 255.7506778740.

The spelling of 16728245 in words is "sixteen million, seven hundred twenty-eight thousand, two hundred forty-five".