16782668 has 24 divisors (see below), whose sum is σ = 34137600. Its totient is φ = 7069968.

The previous prime is 16782611. The next prime is 16782671. The reversal of 16782668 is 86628761.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3428 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (1422400).

Almost surely, 2^16782668 is an apocalyptic number.

It is an amenable number.

16782668 is an abundant number, since it is smaller than the sum of its proper divisors (17354932).

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

16782668 is a wasteful number, since it uses less digits than its factorization.

16782668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10229 (or 10227 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 16782668 is about 4096.6654732843. The cubic root of 16782668 is about 256.0277273027.

The spelling of 16782668 in words is "sixteen million, seven hundred eighty-two thousand, six hundred sixty-eight".