16838742 has 8 divisors (see below), whose sum is σ = 33677496. Its totient is φ = 5612912.

The previous prime is 16838719. The next prime is 16838747. The reversal of 16838742 is 24783861.

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

16838742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 16838742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16838747) 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, 1403223 + ... + 1403234.

It is an arithmetic number, because the mean of its divisors is an integer number (4209687).

Almost surely, 2^16838742 is an apocalyptic number.

16838742 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.

16838742 is a wasteful number, since it uses less digits than its factorization.

16838742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806462.

The product of its digits is 64512, while the sum is 39.

The square root of 16838742 is about 4103.5036249527. The cubic root of 16838742 is about 256.3125556577.

The spelling of 16838742 in words is "sixteen million, eight hundred thirty-eight thousand, seven hundred forty-two".