16138328 has 16 divisors (see below), whose sum is σ = 30331680. Its totient is φ = 8049888.

The previous prime is 16138319. The next prime is 16138333. The reversal of 16138328 is 82383161.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16138294 and 16138303.

It is a congruent number.

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, 1526 + ... + 5882.

It is an arithmetic number, because the mean of its divisors is an integer number (1895730).

Almost surely, 2^16138328 is an apocalyptic number.

It is an amenable number.

16138328 is a deficient number, since it is larger than the sum of its proper divisors (14193352).

16138328 is a wasteful number, since it uses less digits than its factorization.

16138328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826 (or 4822 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 16138328 is about 4017.2537883485. The cubic root of 16138328 is about 252.7083037490.

The spelling of 16138328 in words is "sixteen million, one hundred thirty-eight thousand, three hundred twenty-eight".