16806480 has 80 divisors (see below), whose sum is σ = 52496640. Its totient is φ = 4447744.

The previous prime is 16806479. The next prime is 16806497. The reversal of 16806480 is 8460861.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 57214 + ... + 57506.

It is an arithmetic number, because the mean of its divisors is an integer number (656208).

Almost surely, 2^16806480 is an apocalyptic number.

16806480 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 16806480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26248320).

16806480 is an abundant number, since it is smaller than the sum of its proper divisors (35690160).

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

16806480 is a wasteful number, since it uses less digits than its factorization.

16806480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 16806480 is about 4099.5707092329. The cubic root of 16806480 is about 256.1487579432.

The spelling of 16806480 in words is "sixteen million, eight hundred six thousand, four hundred eighty".