16968880 has 40 divisors (see below), whose sum is σ = 40300992. Its totient is φ = 6641664.

The previous prime is 16968859. The next prime is 16968883. The reversal of 16968880 is 8886961.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 16968880.

It is not an unprimeable number, because it can be changed into a prime (16968883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504 + ... + 6016.

Almost surely, 2^16968880 is an apocalyptic number.

16968880 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 16968880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20150496).

16968880 is an abundant number, since it is smaller than the sum of its proper divisors (23332112).

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

16968880 is a wasteful number, since it uses less digits than its factorization.

16968880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 16968880 is about 4119.3300426162. The cubic root of 16968880 is about 256.9711646351.

The spelling of 16968880 in words is "sixteen million, nine hundred sixty-eight thousand, eight hundred eighty".