8040440029 has 2 divisors, whose sum is σ = 8040440030. Its totient is φ = 8040440028.

The previous prime is 8040440021. The next prime is 8040440033. The reversal of 8040440029 is 9200440408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7439062500 + 601377529 = 86250^2 + 24523^2 .

It is a cyclic number.

It is not a de Polignac number, because 8040440029 - 2³ = 8040440021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8040440021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020220014 + 4020220015.

It is an arithmetic number, because the mean of its divisors is an integer number (4020220015).

Almost surely, 2^8040440029 is an apocalyptic number.

It is an amenable number.

8040440029 is a deficient number, since it is larger than the sum of its proper divisors (1).

8040440029 is an equidigital number, since it uses as much as digits as its factorization.

8040440029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8040440029 is about 89668.5007625309. The cubic root of 8040440029 is about 2003.3643398520.

The spelling of 8040440029 in words is "eight billion, forty million, four hundred forty thousand, twenty-nine".