16504036 has 6 divisors (see below), whose sum is σ = 28882070. Its totient is φ = 8252016.

The previous prime is 16503953. The next prime is 16504049. The reversal of 16504036 is 63040561.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 52900 = 4056^2 + 230^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16504036.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063001 + ... + 2063008.

Almost surely, 2^16504036 is an apocalyptic number.

It is an amenable number.

16504036 is a deficient number, since it is larger than the sum of its proper divisors (12378034).

16504036 is a wasteful number, since it uses less digits than its factorization.

16504036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126013 (or 4126011 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16504036 is about 4062.5159691994. The cubic root of 16504036 is about 254.6029242378.

Adding to 16504036 its reverse (63040561), we get a palindrome (79544597).

The spelling of 16504036 in words is "sixteen million, five hundred four thousand, thirty-six".