16730928 has 40 divisors (see below), whose sum is σ = 48025200. Its totient is φ = 5576832.

The previous prime is 16730921. The next prime is 16730933. The reversal of 16730928 is 82903761.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16730892 and 16730901.

It is not an unprimeable number, because it can be changed into a prime (16730921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18933 + ... + 19796.

It is an arithmetic number, because the mean of its divisors is an integer number (1200630).

Almost surely, 2^16730928 is an apocalyptic number.

16730928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16730928 is an abundant number, since it is smaller than the sum of its proper divisors (31294272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16730928 is a wasteful number, since it uses less digits than its factorization.

16730928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38746 (or 38734 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16730928 is about 4090.3457066610. The cubic root of 16730928 is about 255.7643502066.

The spelling of 16730928 in words is "sixteen million, seven hundred thirty thousand, nine hundred twenty-eight".