16534538 has 16 divisors (see below), whose sum is σ = 25347336. Its totient is φ = 8087040.

The previous prime is 16534519. The next prime is 16534543. The reversal of 16534538 is 83543561.

It can be written as a sum of positive squares in 4 ways, for example, as 1456849 + 15077689 = 1207^2 + 3883^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16534498 and 16534507.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37970 + ... + 38402.

Almost surely, 2^16534538 is an apocalyptic number.

16534538 is a deficient number, since it is larger than the sum of its proper divisors (8812798).

16534538 is a wasteful number, since it uses less digits than its factorization.

16534538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809.

The product of its digits is 43200, while the sum is 35.

The square root of 16534538 is about 4066.2683138229. The cubic root of 16534538 is about 254.7596761804.

The spelling of 16534538 in words is "sixteen million, five hundred thirty-four thousand, five hundred thirty-eight".