16138828 has 12 divisors (see below), whose sum is σ = 29729560. Its totient is φ = 7644672.

The previous prime is 16138823. The next prime is 16138841. The reversal of 16138828 is 82883161.

It is not an unprimeable number, because it can be changed into a prime (16138823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106101 + ... + 106252.

Almost surely, 2^16138828 is an apocalyptic number.

It is an amenable number.

16138828 is a deficient number, since it is larger than the sum of its proper divisors (13590732).

16138828 is a wasteful number, since it uses less digits than its factorization.

16138828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212376 (or 212374 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 16138828 is about 4017.3160194339. The cubic root of 16138828 is about 252.7109135371.

The spelling of 16138828 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred twenty-eight".