16189340 has 24 divisors (see below), whose sum is σ = 34201440. Its totient is φ = 6436928.

The previous prime is 16189333. The next prime is 16189343. The reversal of 16189340 is 4398161.

It is a happy number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 16189297 and 16189306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16189343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 5799.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^16189340 is an apocalyptic number.

16189340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16189340 is an abundant number, since it is smaller than the sum of its proper divisors (18012100).

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

16189340 is a wasteful number, since it uses less digits than its factorization.

16189340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861 (or 4859 counting only the distinct ones).

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

The square root of 16189340 is about 4023.5978924341. The cubic root of 16189340 is about 252.9742874607.

The spelling of 16189340 in words is "sixteen million, one hundred eighty-nine thousand, three hundred forty".