120002844 has 72 divisors (see below), whose sum is σ = 309899520. Its totient is φ = 36109632.

The previous prime is 120002843. The next prime is 120002867. The reversal of 120002844 is 448200021.

It is a self number, because there is not a number n which added to its sum of digits gives 120002844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94687 + ... + 95945.

It is an arithmetic number, because the mean of its divisors is an integer number (4304160).

Almost surely, 2^120002844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120002844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154949760).

120002844 is an abundant number, since it is smaller than the sum of its proper divisors (189896676).

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

120002844 is a wasteful number, since it uses less digits than its factorization.

120002844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 120002844 is about 10954.5809595803. The cubic root of 120002844 is about 493.2463114504.

Adding to 120002844 its reverse (448200021), we get a palindrome (568202865).

The spelling of 120002844 in words is "one hundred twenty million, two thousand, eight hundred forty-four".