16504042 has 16 divisors (see below), whose sum is σ = 26297352. Its totient is φ = 7741440.

The previous prime is 16503953. The next prime is 16504049. The reversal of 16504042 is 24040561.

It can be written as a sum of positive squares in 4 ways, for example, as 13402921 + 3101121 = 3661^2 + 1761^2 .

It is not an unprimeable number, because it can be changed into a prime (16504049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13738 + ... + 14890.

Almost surely, 2^16504042 is an apocalyptic number.

16504042 is a deficient number, since it is larger than the sum of its proper divisors (9793310).

16504042 is a wasteful number, since it uses less digits than its factorization.

16504042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 16504042 is about 4062.5167076580. The cubic root of 16504042 is about 254.6029550913.

The spelling of 16504042 in words is "sixteen million, five hundred four thousand, forty-two".