16730428 has 36 divisors (see below), whose sum is σ = 34670440. Its totient is φ = 7017120.

The previous prime is 16730423. The next prime is 16730437. The reversal of 16730428 is 82403761.

It is a self number, because there is not a number n which added to its sum of digits gives 16730428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16730423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4963 + ... + 7621.

Almost surely, 2^16730428 is an apocalyptic number.

It is an amenable number.

16730428 is an abundant number, since it is smaller than the sum of its proper divisors (17940012).

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

16730428 is a wasteful number, since it uses less digits than its factorization.

16730428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 16730428 is about 4090.2845866761. The cubic root of 16730428 is about 255.7618023613.

The spelling of 16730428 in words is "sixteen million, seven hundred thirty thousand, four hundred twenty-eight".