16928138 has 16 divisors (see below), whose sum is σ = 26628480. Its totient is φ = 8055696.

The previous prime is 16928059. The next prime is 16928143. The reversal of 16928138 is 83182961.

It is a super-2 number, since 2×16928138² = 573123712294088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (1664280).

Almost surely, 2^16928138 is an apocalyptic number.

16928138 is a deficient number, since it is larger than the sum of its proper divisors (9700342).

16928138 is a wasteful number, since it uses less digits than its factorization.

16928138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its digits is 20736, while the sum is 38.

The square root of 16928138 is about 4114.3818490753. The cubic root of 16928138 is about 256.7653386479.

The spelling of 16928138 in words is "sixteen million, nine hundred twenty-eight thousand, one hundred thirty-eight".