16945928 has 16 divisors (see below), whose sum is σ = 32209980. Its totient is φ = 8356608.

The previous prime is 16945927. The next prime is 16945931. The reversal of 16945928 is 82954961.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 315844 = 4078^2 + 562^2 .

It is not an unprimeable number, because it can be changed into a prime (16945927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13925 + ... + 15092.

Almost surely, 2^16945928 is an apocalyptic number.

It is an amenable number.

16945928 is a deficient number, since it is larger than the sum of its proper divisors (15264052).

16945928 is a wasteful number, since it uses less digits than its factorization.

16945928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29096 (or 29092 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 16945928 is about 4116.5432100246. The cubic root of 16945928 is about 256.8552531672.

The spelling of 16945928 in words is "sixteen million, nine hundred forty-five thousand, nine hundred twenty-eight".