16871120 has 80 divisors (see below), whose sum is σ = 45854208. Its totient is φ = 5652480.

The previous prime is 16871111. The next prime is 16871137. The reversal of 16871120 is 2117861.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16871120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26000 + ... + 26640.

Almost surely, 2^16871120 is an apocalyptic number.

16871120 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 16871120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22927104).

16871120 is an abundant number, since it is smaller than the sum of its proper divisors (28983088).

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

16871120 is a wasteful number, since it uses less digits than its factorization.

16871120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 16871120 is about 4107.4468955788. The cubic root of 16871120 is about 256.4767321045.

Adding to 16871120 its reverse (2117861), we get a palindrome (18988981).

The spelling of 16871120 in words is "sixteen million, eight hundred seventy-one thousand, one hundred twenty".