2021343430 has 32 divisors (see below), whose sum is σ = 3673506816. Its totient is φ = 800763264.

The previous prime is 2021343407. The next prime is 2021343439. The reversal of 2021343430 is 343431202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021343439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011192 + ... + 1013188.

It is an arithmetic number, because the mean of its divisors is an integer number (114797088).

Almost surely, 2^2021343430 is an apocalyptic number.

2021343430 is a deficient number, since it is larger than the sum of its proper divisors (1652163386).

2021343430 is a wasteful number, since it uses less digits than its factorization.

2021343430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2021343430 is about 44959.3530869829. The cubic root of 2021343430 is about 1264.3870402337.

Adding to 2021343430 its reverse (343431202), we get a palindrome (2364774632).

The spelling of 2021343430 in words is "two billion, twenty-one million, three hundred forty-three thousand, four hundred thirty".