16904680 has 128 divisors (see below), whose sum is σ = 45360000. Its totient is φ = 5612544.

The previous prime is 16904663. The next prime is 16904711. The reversal of 16904680 is 8640961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286491 + ... + 286549.

It is an arithmetic number, because the mean of its divisors is an integer number (354375).

Almost surely, 2^16904680 is an apocalyptic number.

16904680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16904680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22680000).

16904680 is an abundant number, since it is smaller than the sum of its proper divisors (28455320).

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

16904680 is a wasteful number, since it uses less digits than its factorization.

16904680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 16904680 is about 4111.5301287963. The cubic root of 16904680 is about 256.6466804774.

The spelling of 16904680 in words is "sixteen million, nine hundred four thousand, six hundred eighty".