16190000 has 50 divisors (see below), whose sum is σ = 39221820. Its totient is φ = 6472000.

The previous prime is 16189991. The next prime is 16190003. The reversal of 16190000 is 9161.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×16190000² = 524232200000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16190003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9191 + ... + 10809.

Almost surely, 2^16190000 is an apocalyptic number.

16190000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19610910).

16190000 is an abundant number, since it is smaller than the sum of its proper divisors (23031820).

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

16190000 is an equidigital number, since it uses as much as digits as its factorization.

16190000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 16190000 is about 4023.6799077461. The cubic root of 16190000 is about 252.9777251294.

Adding to 16190000 its reverse (9161), we get a palindrome (16199161).

The spelling of 16190000 in words is "sixteen million, one hundred ninety thousand".