16469109 has 16 divisors (see below), whose sum is σ = 24696000. Its totient is φ = 10845648.

The previous prime is 16469087. The next prime is 16469111. The reversal of 16469109 is 90196461.

16469109 is a `hidden beast` number, since 1 + 646 + 9 + 1 + 0 + 9 = 666.

It is not a de Polignac number, because 16469109 - 2¹² = 16465013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16469149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (1543500).

Almost surely, 2^16469109 is an apocalyptic number.

It is an amenable number.

16469109 is a deficient number, since it is larger than the sum of its proper divisors (8226891).

16469109 is an equidigital number, since it uses as much as digits as its factorization.

16469109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7441 (or 7435 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16469109 is about 4058.2150016972. The cubic root of 16469109 is about 254.4231945299.

The spelling of 16469109 in words is "sixteen million, four hundred sixty-nine thousand, one hundred nine".