16938928 has 10 divisors (see below), whose sum is σ = 32819204. Its totient is φ = 8469456.

The previous prime is 16938917. The next prime is 16938931. The reversal of 16938928 is 82983961.

16938928 = 712² + 713² + ... + 743².

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 as a sum of consecutive naturals, namely, 529326 + ... + 529357.

Almost surely, 2^16938928 is an apocalyptic number.

It is an amenable number.

16938928 is a deficient number, since it is larger than the sum of its proper divisors (15880276).

16938928 is a wasteful number, since it uses less digits than its factorization.

16938928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058691 (or 1058685 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 16938928 is about 4115.6928942767. The cubic root of 16938928 is about 256.8198811612.

The spelling of 16938928 in words is "sixteen million, nine hundred thirty-eight thousand, nine hundred twenty-eight".