16878880 has 96 divisors (see below), whose sum is σ = 42674688. Its totient is φ = 6297600.

The previous prime is 16878863. The next prime is 16878881. The reversal of 16878880 is 8887861.

It is a self number, because there is not a number n which added to its sum of digits gives 16878880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16878881) by changing a digit.

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, 203319 + ... + 203401.

It is an arithmetic number, because the mean of its divisors is an integer number (444528).

Almost surely, 2^16878880 is an apocalyptic number.

16878880 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 16878880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21337344).

16878880 is an abundant number, since it is smaller than the sum of its proper divisors (25795808).

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

16878880 is a wasteful number, since it uses less digits than its factorization.

16878880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 16878880 is about 4108.3914127064. The cubic root of 16878880 is about 256.5160488852.

The spelling of 16878880 in words is "sixteen million, eight hundred seventy-eight thousand, eight hundred eighty".