2021300 has 72 divisors (see below), whose sum is σ = 4921560. Its totient is φ = 716800.

The previous prime is 2021291. The next prime is 2021321. The reversal of 2021300 is 31202.

It can be written as a sum of positive squares in 12 ways, for example, as 753424 + 1267876 = 868^2 + 1126^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49280 + ... + 49320.

It is an arithmetic number, because the mean of its divisors is an integer number (68355).

2^2021300 is an apocalyptic number.

2021300 is a gapful number since it is divisible by the number (20) 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 2021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460780).

2021300 is an abundant number, since it is smaller than the sum of its proper divisors (2900260).

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

2021300 is a wasteful number, since it uses less digits than its factorization.

2021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2021300 is about 1421.7243052013. The cubic root of 2021300 is about 126.4377984751.

Adding to 2021300 its reverse (31202), we get a palindrome (2052502).

The spelling of 2021300 in words is "two million, twenty-one thousand, three hundred".