16489538 has 16 divisors (see below), whose sum is σ = 26779200. Its totient is φ = 7569936.

The previous prime is 16489523. The next prime is 16489547. The reversal of 16489538 is 83598461.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3581 + ... + 6767.

It is an arithmetic number, because the mean of its divisors is an integer number (1673700).

Almost surely, 2^16489538 is an apocalyptic number.

16489538 is a deficient number, since it is larger than the sum of its proper divisors (10289662).

16489538 is a wasteful number, since it uses less digits than its factorization.

16489538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401.

The product of its digits is 207360, while the sum is 44.

The square root of 16489538 is about 4060.7312149415. The cubic root of 16489538 is about 254.5283502654.

The spelling of 16489538 in words is "sixteen million, four hundred eighty-nine thousand, five hundred thirty-eight".