1304401039 has 2 divisors, whose sum is σ = 1304401040. Its totient is φ = 1304401038.

The previous prime is 1304401031. The next prime is 1304401061. The reversal of 1304401039 is 9301044031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304401039 - 2³ = 1304401031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304401031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652200519 + 652200520.

It is an arithmetic number, because the mean of its divisors is an integer number (652200520).

Almost surely, 2^1304401039 is an apocalyptic number.

1304401039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304401039 is an equidigital number, since it uses as much as digits as its factorization.

1304401039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1304401039 is about 36116.4926176394. The cubic root of 1304401039 is about 1092.6231016429.

The spelling of 1304401039 in words is "one billion, three hundred four million, four hundred one thousand, thirty-nine".