19883238 has 8 divisors (see below), whose sum is σ = 39766488. Its totient is φ = 6627744.

The previous prime is 19883219. The next prime is 19883267. The reversal of 19883238 is 83238891.

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

19883238 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19883238.

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, 1656931 + ... + 1656942.

It is an arithmetic number, because the mean of its divisors is an integer number (4970811).

Almost surely, 2^19883238 is an apocalyptic number.

19883238 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.

19883238 is a wasteful number, since it uses less digits than its factorization.

19883238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313878.

The product of its digits is 82944, while the sum is 42.

The square root of 19883238 is about 4459.0624575128. The cubic root of 19883238 is about 270.9124956338.

It can be divided in two parts, 198 and 83238, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 19883238 in words is "nineteen million, eight hundred eighty-three thousand, two hundred thirty-eight".