16530884 has 12 divisors (see below), whose sum is σ = 29054844. Its totient is φ = 8229504.

The previous prime is 16530869. The next prime is 16530889. The reversal of 16530884 is 48803561.

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 7398400 = 3022^2 + 2720^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16530889) 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, 7937 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (2421237).

Almost surely, 2^16530884 is an apocalyptic number.

It is an amenable number.

16530884 is a deficient number, since it is larger than the sum of its proper divisors (12523960).

16530884 is a wasteful number, since it uses less digits than its factorization.

16530884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17974 (or 17972 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 16530884 is about 4065.8189826897. The cubic root of 16530884 is about 254.7409081842.

The spelling of 16530884 in words is "sixteen million, five hundred thirty thousand, eight hundred eighty-four".