16720204 has 6 divisors (see below), whose sum is σ = 29260364. Its totient is φ = 8360100.

The previous prime is 16720199. The next prime is 16720217. The reversal of 16720204 is 40202761.

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 as a sum of consecutive naturals, namely, 2090022 + ... + 2090029.

Almost surely, 2^16720204 is an apocalyptic number.

It is an amenable number.

16720204 is a deficient number, since it is larger than the sum of its proper divisors (12540160).

16720204 is a wasteful number, since it uses less digits than its factorization.

16720204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180055 (or 4180053 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 16720204 is about 4089.0346048915. The cubic root of 16720204 is about 255.7096928853.

Adding to 16720204 its reverse (40202761), we get a palindrome (56922965).

The spelling of 16720204 in words is "sixteen million, seven hundred twenty thousand, two hundred four".