16804422 has 48 divisors (see below), whose sum is σ = 38368512. Its totient is φ = 5511240.

The previous prime is 16804409. The next prime is 16804423. The reversal of 16804422 is 22440861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16804423) 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, 34263 + ... + 34749.

It is an arithmetic number, because the mean of its divisors is an integer number (799344).

Almost surely, 2^16804422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16804422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19184256).

16804422 is an abundant number, since it is smaller than the sum of its proper divisors (21564090).

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

16804422 is an equidigital number, since it uses as much as digits as its factorization.

16804422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 16804422 is about 4099.3196996575. The cubic root of 16804422 is about 256.1383021416.

The spelling of 16804422 in words is "sixteen million, eight hundred four thousand, four hundred twenty-two".