16189794 has 60 divisors (see below), whose sum is σ = 37794834. Its totient is φ = 5178816.

The previous prime is 16189787. The next prime is 16189807. The reversal of 16189794 is 49798161.

It is a happy number.

16189794 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 16040025 + 149769 = 4005^2 + 387^2 .

It is a super-3 number, since 3×16189794³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 221742 + ... + 221814.

Almost surely, 2^16189794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16189794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18897417).

16189794 is an abundant number, since it is smaller than the sum of its proper divisors (21605040).

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

16189794 is an equidigital number, since it uses as much as digits as its factorization.

16189794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 115 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 16189794 is about 4023.6543092070. The cubic root of 16189794 is about 252.9766521701.

The spelling of 16189794 in words is "sixteen million, one hundred eighty-nine thousand, seven hundred ninety-four".