1820244192 has 96 divisors (see below), whose sum is σ = 5193286560. Its totient is φ = 554895360.

The previous prime is 1820244191. The next prime is 1820244203. The reversal of 1820244192 is 2914420281.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820244191) 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, 129342 + ... + 142722.

It is an arithmetic number, because the mean of its divisors is an integer number (54096735).

Almost surely, 2^1820244192 is an apocalyptic number.

1820244192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1820244192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596643280).

1820244192 is an abundant number, since it is smaller than the sum of its proper divisors (3373042368).

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

1820244192 is a wasteful number, since it uses less digits than its factorization.

1820244192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13516 (or 13508 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1820244192 is about 42664.3198937942. The cubic root of 1820244192 is about 1220.9837519076.

The spelling of 1820244192 in words is "one billion, eight hundred twenty million, two hundred forty-four thousand, one hundred ninety-two".