2021443234 has 8 divisors (see below), whose sum is σ = 3037610268. Its totient is φ = 1008906480.

The previous prime is 2021443187. The next prime is 2021443261. The reversal of 2021443234 is 4323441202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2001220225 + 20223009 = 44735^2 + 4497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021443199 and 2021443208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906177 + ... + 908404.

Almost surely, 2^2021443234 is an apocalyptic number.

2021443234 is a deficient number, since it is larger than the sum of its proper divisors (1016167034).

2021443234 is a wasteful number, since it uses less digits than its factorization.

2021443234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815140.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2021443234 is about 44960.4630091817. The cubic root of 2021443234 is about 1264.4078496297.

Adding to 2021443234 its reverse (4323441202), we get a palindrome (6344884436).

The spelling of 2021443234 in words is "two billion, twenty-one million, four hundred forty-three thousand, two hundred thirty-four".