16689190 has 16 divisors (see below), whose sum is σ = 34332192. Its totient is φ = 5721984.

The previous prime is 16689161. The next prime is 16689199. The reversal of 16689190 is 9198661.

It is a super-2 number, since 2×16689190² = 557058125712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16689199) 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 in 7 ways as a sum of consecutive naturals, for example, 119139 + ... + 119278.

It is an arithmetic number, because the mean of its divisors is an integer number (2145762).

Almost surely, 2^16689190 is an apocalyptic number.

16689190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16689190 is an abundant number, since it is smaller than the sum of its proper divisors (17643002).

16689190 is a wasteful number, since it uses less digits than its factorization.

16689190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238431.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 16689190 is about 4085.2405069959. The cubic root of 16689190 is about 255.5514912887.

The spelling of 16689190 in words is "sixteen million, six hundred eighty-nine thousand, one hundred ninety".