19828542 has 8 divisors (see below), whose sum is σ = 39657096. Its totient is φ = 6609512.

The previous prime is 19828531. The next prime is 19828591. The reversal of 19828542 is 24582891.

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

19828542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 19828542.

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, 1652373 + ... + 1652384.

It is an arithmetic number, because the mean of its divisors is an integer number (4957137).

Almost surely, 2^19828542 is an apocalyptic number.

19828542 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.

19828542 is a wasteful number, since it uses less digits than its factorization.

19828542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304762.

The product of its digits is 46080, while the sum is 39.

The square root of 19828542 is about 4452.9251060398. The cubic root of 19828542 is about 270.6638534035.

The spelling of 19828542 in words is "nineteen million, eight hundred twenty-eight thousand, five hundred forty-two".