16838656 has 26 divisors (see below), whose sum is σ = 33681392. Its totient is φ = 8417280.

The previous prime is 16838651. The next prime is 16838681. The reversal of 16838656 is 65683861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16838651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2041 + ... + 6151.

Almost surely, 2^16838656 is an apocalyptic number.

16838656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16838656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16840696).

16838656 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.

16838656 is an frugal number, since it uses more digits than its factorization.

16838656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135 (or 4113 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 16838656 is about 4103.4931460891. The cubic root of 16838656 is about 256.3121193045.

The spelling of 16838656 in words is "sixteen million, eight hundred thirty-eight thousand, six hundred fifty-six".