16890828 has 12 divisors (see below), whose sum is σ = 39411960. Its totient is φ = 5630272.

The previous prime is 16890827. The next prime is 16890857. The reversal of 16890828 is 82809861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 16890828.

It is not an unprimeable number, because it can be changed into a prime (16890827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703773 + ... + 703796.

It is an arithmetic number, because the mean of its divisors is an integer number (3284330).

Almost surely, 2^16890828 is an apocalyptic number.

It is an amenable number.

16890828 is an abundant number, since it is smaller than the sum of its proper divisors (22521132).

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

16890828 is a wasteful number, since it uses less digits than its factorization.

16890828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407576 (or 1407574 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 16890828 is about 4109.8452525612. The cubic root of 16890828 is about 256.5765610137.

The spelling of 16890828 in words is "sixteen million, eight hundred ninety thousand, eight hundred twenty-eight".