1040020307 has 2 divisors, whose sum is σ = 1040020308. Its totient is φ = 1040020306.

The previous prime is 1040020253. The next prime is 1040020337. The reversal of 1040020307 is 7030200401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040020307 - 2¹⁸ = 1039758163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040020337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520010153 + 520010154.

It is an arithmetic number, because the mean of its divisors is an integer number (520010154).

Almost surely, 2^1040020307 is an apocalyptic number.

1040020307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040020307 is an equidigital number, since it uses as much as digits as its factorization.

1040020307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1040020307 is about 32249.3458383267. The cubic root of 1040020307 is about 1013.1659980811.

Adding to 1040020307 its reverse (7030200401), we get a palindrome (8070220708).

The spelling of 1040020307 in words is "one billion, forty million, twenty thousand, three hundred seven".