19982838 has 8 divisors (see below), whose sum is σ = 39965688. Its totient is φ = 6660944.

The previous prime is 19982819. The next prime is 19982843. The reversal of 19982838 is 83828991.

It is a happy number.

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

19982838 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665231 + ... + 1665242.

It is an arithmetic number, because the mean of its divisors is an integer number (4995711).

Almost surely, 2^19982838 is an apocalyptic number.

19982838 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.

19982838 is a wasteful number, since it uses less digits than its factorization.

19982838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330478.

The product of its digits is 248832, while the sum is 48.

The square root of 19982838 is about 4470.2167732673. The cubic root of 19982838 is about 271.3640980490.

The spelling of 19982838 in words is "nineteen million, nine hundred eighty-two thousand, eight hundred thirty-eight".