19839852 has 18 divisors (see below), whose sum is σ = 50150828. Its totient is φ = 6613272.

The previous prime is 19839851. The next prime is 19839863. The reversal of 19839852 is 25893891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 19839798 and 19839807.

It is not an unprimeable number, because it can be changed into a prime (19839851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275518 + ... + 275589.

Almost surely, 2^19839852 is an apocalyptic number.

19839852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19839852 is an abundant number, since it is smaller than the sum of its proper divisors (30310976).

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

19839852 is a wasteful number, since it uses less digits than its factorization.

19839852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551117 (or 551112 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 19839852 is about 4454.1948767426. The cubic root of 19839852 is about 270.7153049313.

The spelling of 19839852 in words is "nineteen million, eight hundred thirty-nine thousand, eight hundred fifty-two".