16800534 has 64 divisors (see below), whose sum is σ = 39674880. Its totient is φ = 5324616.

The previous prime is 16800473. The next prime is 16800569. The reversal of 16800534 is 43500861.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 16800498 and 16800507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100519 + ... + 100685.

It is an arithmetic number, because the mean of its divisors is an integer number (619920).

Almost surely, 2^16800534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16800534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19837440).

16800534 is an abundant number, since it is smaller than the sum of its proper divisors (22874346).

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

16800534 is an equidigital number, since it uses as much as digits as its factorization.

16800534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 16800534 is about 4098.8454471961. The cubic root of 16800534 is about 256.1185465770.

The spelling of 16800534 in words is "sixteen million, eight hundred thousand, five hundred thirty-four".