16847680 has 112 divisors (see below), whose sum is σ = 44988480. Its totient is φ = 5971968.

The previous prime is 16847669. The next prime is 16847681. The reversal of 16847680 is 8674861.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16847681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103279 + ... + 103441.

Almost surely, 2^16847680 is an apocalyptic number.

16847680 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 16847680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22494240).

16847680 is an abundant number, since it is smaller than the sum of its proper divisors (28140800).

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

16847680 is a wasteful number, since it uses less digits than its factorization.

16847680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 16847680 is about 4104.5925498154. The cubic root of 16847680 is about 256.3578978494.

The spelling of 16847680 in words is "sixteen million, eight hundred forty-seven thousand, six hundred eighty".