16890128 has 20 divisors (see below), whose sum is σ = 32886288. Its totient is φ = 8403360.

The previous prime is 16890109. The next prime is 16890131. The reversal of 16890128 is 82109861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875 + ... + 5877.

Almost surely, 2^16890128 is an apocalyptic number.

It is an amenable number.

16890128 is a deficient number, since it is larger than the sum of its proper divisors (15996160).

16890128 is a wasteful number, since it uses less digits than its factorization.

16890128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 16890128 is about 4109.7600903216. The cubic root of 16890128 is about 256.5730165639.

Adding to 16890128 its reverse (82109861), we get a palindrome (98999989).

The spelling of 16890128 in words is "sixteen million, eight hundred ninety thousand, one hundred twenty-eight".