16690234 has 16 divisors (see below), whose sum is σ = 27457056. Its totient is φ = 7546000.

The previous prime is 16690231. The next prime is 16690237. The reversal of 16690234 is 43209661.

It is an interprime number because it is at equal distance from previous prime (16690231) and next prime (16690237).

It is a junction number, because it is equal to n+sod(n) for n = 16690196 and 16690205.

It is not an unprimeable number, because it can be changed into a prime (16690231) 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, 2409 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (1716066).

Almost surely, 2^16690234 is an apocalyptic number.

16690234 is a deficient number, since it is larger than the sum of its proper divisors (10766822).

16690234 is a wasteful number, since it uses less digits than its factorization.

16690234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 16690234 is about 4085.3682820524. The cubic root of 16690234 is about 255.5568198915.

Adding to 16690234 its reverse (43209661), we get a palindrome (59899895).

The spelling of 16690234 in words is "sixteen million, six hundred ninety thousand, two hundred thirty-four".