16939228 has 12 divisors (see below), whose sum is σ = 29860992. Its totient is φ = 8407520.

The previous prime is 16939213. The next prime is 16939231. The reversal of 16939228 is 82293961.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14908 + ... + 16003.

It is an arithmetic number, because the mean of its divisors is an integer number (2488416).

Almost surely, 2^16939228 is an apocalyptic number.

It is an amenable number.

16939228 is a deficient number, since it is larger than the sum of its proper divisors (12921764).

16939228 is a wasteful number, since it uses less digits than its factorization.

16939228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31052 (or 31050 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 16939228 is about 4115.7293399834. The cubic root of 16939228 is about 256.8213973042.

The spelling of 16939228 in words is "sixteen million, nine hundred thirty-nine thousand, two hundred twenty-eight".