16644234 has 8 divisors (see below), whose sum is σ = 33288480. Its totient is φ = 5548076.

The previous prime is 16644233. The next prime is 16644253. The reversal of 16644234 is 43244661.

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

16644234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16644233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387014 + ... + 1387025.

It is an arithmetic number, because the mean of its divisors is an integer number (4161060).

Almost surely, 2^16644234 is an apocalyptic number.

16644234 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.

16644234 is a wasteful number, since it uses less digits than its factorization.

16644234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774044.

The product of its digits is 13824, while the sum is 30.

The square root of 16644234 is about 4079.7345501883. The cubic root of 16644234 is about 255.3218235822.

Adding to 16644234 its reverse (43244661), we get a palindrome (59888895).

The spelling of 16644234 in words is "sixteen million, six hundred forty-four thousand, two hundred thirty-four".