16728330 has 16 divisors (see below), whose sum is σ = 40148064. Its totient is φ = 4460880.

The previous prime is 16728319. The next prime is 16728347. The reversal of 16728330 is 3382761.

16728330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 557611 = 16728330 / (1 + 6 + 7 + 2 + 8 + 3 + 3 + 0).

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, 278776 + ... + 278835.

It is an arithmetic number, because the mean of its divisors is an integer number (2509254).

Almost surely, 2^16728330 is an apocalyptic number.

16728330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16728330 is an abundant number, since it is smaller than the sum of its proper divisors (23419734).

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

16728330 is a wasteful number, since it uses less digits than its factorization.

16728330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557621.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 16728330 is about 4090.0281172628. The cubic root of 16728330 is about 255.7511110490.

The spelling of 16728330 in words is "sixteen million, seven hundred twenty-eight thousand, three hundred thirty".