16549330 has 32 divisors (see below), whose sum is σ = 36049536. Its totient is φ = 5339904.

The previous prime is 16549321. The next prime is 16549333. The reversal of 16549330 is 3394561.

It is a junction number, because it is equal to n+sod(n) for n = 16549292 and 16549301.

It is not an unprimeable number, because it can be changed into a prime (16549333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5764 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (1126548).

Almost surely, 2^16549330 is an apocalyptic number.

16549330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16549330 is an abundant number, since it is smaller than the sum of its proper divisors (19500206).

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

16549330 is a wasteful number, since it uses less digits than its factorization.

16549330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13938.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 16549330 is about 4068.0867739024. The cubic root of 16549330 is about 254.8356239114.

The spelling of 16549330 in words is "sixteen million, five hundred forty-nine thousand, three hundred thirty".