16380194 has 4 divisors (see below), whose sum is σ = 24570294. Its totient is φ = 8190096.

The previous prime is 16380191. The next prime is 16380253. The reversal of 16380194 is 49108361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10004569 + 6375625 = 3163^2 + 2525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16380194.

It is not an unprimeable number, because it can be changed into a prime (16380191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095047 + ... + 4095050.

Almost surely, 2^16380194 is an apocalyptic number.

16380194 is a deficient number, since it is larger than the sum of its proper divisors (8190100).

16380194 is an equidigital number, since it uses as much as digits as its factorization.

16380194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190099.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 16380194 is about 4047.2452359599. The cubic root of 16380194 is about 253.9644999676.

The spelling of 16380194 in words is "sixteen million, three hundred eighty thousand, one hundred ninety-four".