16839138 has 16 divisors (see below), whose sum is σ = 34765056. Its totient is φ = 5431920.

The previous prime is 16839091. The next prime is 16839139. The reversal of 16839138 is 83193861.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16839096 and 16839105.

It is not an unprimeable number, because it can be changed into a prime (16839139) 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, 45081 + ... + 45452.

It is an arithmetic number, because the mean of its divisors is an integer number (2172816).

Almost surely, 2^16839138 is an apocalyptic number.

16839138 is an abundant number, since it is smaller than the sum of its proper divisors (17925918).

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

16839138 is a wasteful number, since it uses less digits than its factorization.

16839138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90569.

The product of its digits is 31104, while the sum is 39.

The square root of 16839138 is about 4103.5518761190. The cubic root of 16839138 is about 256.3145648928.

The spelling of 16839138 in words is "sixteen million, eight hundred thirty-nine thousand, one hundred thirty-eight".