19819848 has 16 divisors (see below), whose sum is σ = 49549680. Its totient is φ = 6606608.

The previous prime is 19819843. The next prime is 19819883. The reversal of 19819848 is 84891891.

It is a junction number, because it is equal to n+sod(n) for n = 19819797 and 19819806.

It is not an unprimeable number, because it can be changed into a prime (19819843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412890 + ... + 412937.

It is an arithmetic number, because the mean of its divisors is an integer number (3096855).

Almost surely, 2^19819848 is an apocalyptic number.

It is an amenable number.

19819848 is an abundant number, since it is smaller than the sum of its proper divisors (29729832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19819848 is a wasteful number, since it uses less digits than its factorization.

19819848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825836 (or 825832 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The square root of 19819848 is about 4451.9487867674. The cubic root of 19819848 is about 270.6242892987.

The spelling of 19819848 in words is "nineteen million, eight hundred nineteen thousand, eight hundred forty-eight".