19883481 has 8 divisors (see below), whose sum is σ = 27906720. Its totient is φ = 12557952.

The previous prime is 19883449. The next prime is 19883497. The reversal of 19883481 is 18438891.

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

It is not a de Polignac number, because 19883481 - 2⁵ = 19883449 is a prime.

It is a super-2 number, since 2×19883481² = 790705633354722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19883581) 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, 174360 + ... + 174473.

It is an arithmetic number, because the mean of its divisors is an integer number (3488340).

Almost surely, 2^19883481 is an apocalyptic number.

It is an amenable number.

19883481 is a deficient number, since it is larger than the sum of its proper divisors (8023239).

19883481 is a wasteful number, since it uses less digits than its factorization.

19883481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348855.

The product of its digits is 55296, while the sum is 42.

The square root of 19883481 is about 4459.0897053098. The cubic root of 19883481 is about 270.9135992680.

The spelling of 19883481 in words is "nineteen million, eight hundred eighty-three thousand, four hundred eighty-one".