16690242 has 8 divisors (see below), whose sum is σ = 33380496. Its totient is φ = 5563412.

The previous prime is 16690241. The next prime is 16690253. The reversal of 16690242 is 24209661.

It is a sphenic number, since it is the product of 3 distinct primes.

16690242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16690241) 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 3 ways as a sum of consecutive naturals, for example, 1390848 + ... + 1390859.

It is an arithmetic number, because the mean of its divisors is an integer number (4172562).

Almost surely, 2^16690242 is an apocalyptic number.

16690242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16690242 is a wasteful number, since it uses less digits than its factorization.

16690242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781712.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 16690242 is about 4085.3692611562. The cubic root of 16690242 is about 255.5568607229.

The spelling of 16690242 in words is "sixteen million, six hundred ninety thousand, two hundred forty-two".