16729668 has 36 divisors (see below), whose sum is σ = 42563248. Its totient is φ = 5540400.

The previous prime is 16729667. The next prime is 16729679. The reversal of 16729668 is 86692761.

It is a tau number, because it is divible by the number of its divisors (36).

Its product of digits (217728) is a multiple of the sum of its prime factors (3024).

It is not an unprimeable number, because it can be changed into a prime (16729663) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4443 + ... + 7293.

Almost surely, 2^16729668 is an apocalyptic number.

16729668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16729668 is an abundant number, since it is smaller than the sum of its proper divisors (25833580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16729668 is a wasteful number, since it uses less digits than its factorization.

16729668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024 (or 3019 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 16729668 is about 4090.1916825499. The cubic root of 16729668 is about 255.7579295392.

The spelling of 16729668 in words is "sixteen million, seven hundred twenty-nine thousand, six hundred sixty-eight".