1923999852 has 48 divisors (see below), whose sum is σ = 4697717472. Its totient is φ = 612218880.

The previous prime is 1923999851. The next prime is 1923999877. The reversal of 1923999852 is 2589993291.

It is a junction number, because it is equal to n+sod(n) for n = 1923999792 and 1923999801.

It is not an unprimeable number, because it can be changed into a prime (1923999851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17349 + ... + 64412.

It is an arithmetic number, because the mean of its divisors is an integer number (97869114).

Almost surely, 2^1923999852 is an apocalyptic number.

1923999852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1923999852 is an abundant number, since it is smaller than the sum of its proper divisors (2773717620).

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

1923999852 is a wasteful number, since it uses less digits than its factorization.

1923999852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81858 (or 81856 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 57.

The square root of 1923999852 is about 43863.4227118678. The cubic root of 1923999852 is about 1243.7554919347.

The spelling of 1923999852 in words is "one billion, nine hundred twenty-three million, nine hundred ninety-nine thousand, eight hundred fifty-two".