16545628 has 24 divisors (see below), whose sum is σ = 31691520. Its totient is φ = 7495920.

The previous prime is 16545619. The next prime is 16545629. The reversal of 16545628 is 82654561.

16545628 is a nontrivial binomial coefficient, being equal to C(5753, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545629) 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, 22653 + ... + 23371.

It is an arithmetic number, because the mean of its divisors is an integer number (1320480).

Almost surely, 2^16545628 is an apocalyptic number.

16545628 is the 5752-nd triangular number.

16545628 is the 1918-th centered nonagonal number.

It is an amenable number.

16545628 is a deficient number, since it is larger than the sum of its proper divisors (15145892).

16545628 is a wasteful number, since it uses less digits than its factorization.

16545628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1255 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 16545628 is about 4067.6317434104. The cubic root of 16545628 is about 254.8166206883.

The spelling of 16545628 in words is "sixteen million, five hundred forty-five thousand, six hundred twenty-eight".