2040323221 has 8 divisors (see below), whose sum is σ = 2213034264. Its totient is φ = 1873466880.

The previous prime is 2040323203. The next prime is 2040323281. The reversal of 2040323221 is 1223230402.

It can be written as a sum of positive squares in 4 ways, for example, as 25300900 + 2015022321 = 5030^2 + 44889^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2040323221 - 2⁷ = 2040323093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040323281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462950 + ... + 1464343.

It is an arithmetic number, because the mean of its divisors is an integer number (276629283).

Almost surely, 2^2040323221 is an apocalyptic number.

It is an amenable number.

2040323221 is a deficient number, since it is larger than the sum of its proper divisors (172711043).

2040323221 is a wasteful number, since it uses less digits than its factorization.

2040323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927351.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2040323221 is about 45169.9371374369. The cubic root of 2040323221 is about 1268.3321195540.

Adding to 2040323221 its reverse (1223230402), we get a palindrome (3263553623).

The spelling of 2040323221 in words is "two billion, forty million, three hundred twenty-three thousand, two hundred twenty-one".