16809234 has 16 divisors (see below), whose sum is σ = 36204672. Its totient is φ = 5172048.

The previous prime is 16809229. The next prime is 16809253. The reversal of 16809234 is 43290861.

It is a junction number, because it is equal to n+sod(n) for n = 16809195 and 16809204.

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, 107674 + ... + 107829.

It is an arithmetic number, because the mean of its divisors is an integer number (2262792).

Almost surely, 2^16809234 is an apocalyptic number.

16809234 is an abundant number, since it is smaller than the sum of its proper divisors (19395438).

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

16809234 is a wasteful number, since it uses less digits than its factorization.

16809234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215521.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 16809234 is about 4099.9065843016. The cubic root of 16809234 is about 256.1627484824.

The spelling of 16809234 in words is "sixteen million, eight hundred nine thousand, two hundred thirty-four".