16838140 has 24 divisors (see below), whose sum is σ = 38575152. Its totient is φ = 6122880.

The previous prime is 16838137. The next prime is 16838189. The reversal of 16838140 is 4183861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38049 + ... + 38488.

It is an arithmetic number, because the mean of its divisors is an integer number (1607298).

Almost surely, 2^16838140 is an apocalyptic number.

16838140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16838140 is an abundant number, since it is smaller than the sum of its proper divisors (21737012).

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

16838140 is a wasteful number, since it uses less digits than its factorization.

16838140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76557 (or 76555 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 16838140 is about 4103.4302723453. The cubic root of 16838140 is about 256.3095011540.

The spelling of 16838140 in words is "sixteen million, eight hundred thirty-eight thousand, one hundred forty".