1040234399 has 2 divisors, whose sum is σ = 1040234400. Its totient is φ = 1040234398.

The previous prime is 1040234387. The next prime is 1040234407. The reversal of 1040234399 is 9934320401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040234399 - 2⁴ = 1040234383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040234359) 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, 520117199 + 520117200.

It is an arithmetic number, because the mean of its divisors is an integer number (520117200).

Almost surely, 2^1040234399 is an apocalyptic number.

1040234399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040234399 is an equidigital number, since it uses as much as digits as its factorization.

1040234399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 1040234399 is about 32252.6649906639. The cubic root of 1040234399 is about 1013.2355146252.

The spelling of 1040234399 in words is "one billion, forty million, two hundred thirty-four thousand, three hundred ninety-nine".