2021343450 has 96 divisors (see below), whose sum is σ = 5759631360. Its totient is φ = 459556800.

The previous prime is 2021343439. The next prime is 2021343479. The reversal of 2021343450 is 543431202.

2021343450 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2021343450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195511 + ... + 205589.

It is an arithmetic number, because the mean of its divisors is an integer number (59996160).

Almost surely, 2^2021343450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021343450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2879815680).

2021343450 is an abundant number, since it is smaller than the sum of its proper divisors (3738287910).

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

2021343450 is a wasteful number, since it uses less digits than its factorization.

2021343450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292 (or 10287 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2021343450 is about 44959.3533094060. The cubic root of 2021343450 is about 1264.3870444039.

Adding to 2021343450 its reverse (543431202), we get a palindrome (2564774652).

The spelling of 2021343450 in words is "two billion, twenty-one million, three hundred forty-three thousand, four hundred fifty".