19984342 has 8 divisors (see below), whose sum is σ = 34258896. Its totient is φ = 8564712.

The previous prime is 19984337. The next prime is 19984351. The reversal of 19984342 is 24348991.

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

It is a junction number, because it is equal to n+sod(n) for n = 19984295 and 19984304.

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, 713713 + ... + 713740.

It is an arithmetic number, because the mean of its divisors is an integer number (4282362).

Almost surely, 2^19984342 is an apocalyptic number.

19984342 is a deficient number, since it is larger than the sum of its proper divisors (14274554).

19984342 is a wasteful number, since it uses less digits than its factorization.

19984342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427462.

The product of its digits is 62208, while the sum is 40.

The square root of 19984342 is about 4470.3849946062. The cubic root of 19984342 is about 271.3709059136.

The spelling of 19984342 in words is "nineteen million, nine hundred eighty-four thousand, three hundred forty-two".