16809030 has 48 divisors (see below), whose sum is σ = 49948704. Its totient is φ = 3841920.

The previous prime is 16809019. The next prime is 16809031. The reversal of 16809030 is 3090861.

It is a junction number, because it is equal to n+sod(n) for n = 16808985 and 16809003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16809031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12711 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (1040598).

Almost surely, 2^16809030 is an apocalyptic number.

16809030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16809030 is an abundant number, since it is smaller than the sum of its proper divisors (33139674).

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

16809030 is a wasteful number, since it uses less digits than its factorization.

16809030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26701 (or 26698 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 16809030 is about 4099.8817056105. The cubic root of 16809030 is about 256.1617121985.

Adding to 16809030 its reverse (3090861), we get a palindrome (19899891).

The spelling of 16809030 in words is "sixteen million, eight hundred nine thousand, thirty".