1040302009 has 2 divisors, whose sum is σ = 1040302010. Its totient is φ = 1040302008.

The previous prime is 1040301971. The next prime is 1040302033. The reversal of 1040302009 is 9002030401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037162025 + 3139984 = 32205^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040302009 - 2²⁷ = 906084281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040302609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520151004 + 520151005.

It is an arithmetic number, because the mean of its divisors is an integer number (520151005).

Almost surely, 2^1040302009 is an apocalyptic number.

It is an amenable number.

1040302009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040302009 is an equidigital number, since it uses as much as digits as its factorization.

1040302009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1040302009 is about 32253.7131040753. The cubic root of 1040302009 is about 1013.2574658858.

The spelling of 1040302009 in words is "one billion, forty million, three hundred two thousand, nine".