2021030244 has 96 divisors (see below), whose sum is σ = 5727052800. Its totient is φ = 613578240.

The previous prime is 2021030239. The next prime is 2021030251. The reversal of 2021030244 is 4420301202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 39162 + ... + 74670.

It is an arithmetic number, because the mean of its divisors is an integer number (59656800).

Almost surely, 2^2021030244 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 2021030244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2863526400).

2021030244 is an abundant number, since it is smaller than the sum of its proper divisors (3706022556).

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

2021030244 is a wasteful number, since it uses less digits than its factorization.

2021030244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35570 (or 35562 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2021030244 is about 44955.8699615523. The cubic root of 2021030244 is about 1264.3217356832.

Adding to 2021030244 its reverse (4420301202), we get a palindrome (6441331446).

The spelling of 2021030244 in words is "two billion, twenty-one million, thirty thousand, two hundred forty-four".