2040434321 has 2 divisors, whose sum is σ = 2040434322. Its totient is φ = 2040434320.

The previous prime is 2040434311. The next prime is 2040434369. The reversal of 2040434321 is 1234340402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1597121296 + 443313025 = 39964^2 + 21055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040434321 - 2⁶ = 2040434257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2040434311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020217160 + 1020217161.

It is an arithmetic number, because the mean of its divisors is an integer number (1020217161).

Almost surely, 2^2040434321 is an apocalyptic number.

It is an amenable number.

2040434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040434321 is an equidigital number, since it uses as much as digits as its factorization.

2040434321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2040434321 is about 45171.1669209464. The cubic root of 2040434321 is about 1268.3551402760.

Adding to 2040434321 its reverse (1234340402), we get a palindrome (3274774723).

The spelling of 2040434321 in words is "two billion, forty million, four hundred thirty-four thousand, three hundred twenty-one".