1304240442405 has 16 divisors (see below), whose sum is σ = 2087750416704. Its totient is φ = 695272999680.

The previous prime is 1304240442403. The next prime is 1304240442413. The reversal of 1304240442405 is 5042440424031.

It is not a de Polignac number, because 1304240442405 - 2¹ = 1304240442403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304240442403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20085439 + ... + 20150268.

It is an arithmetic number, because the mean of its divisors is an integer number (130484401044).

Almost surely, 2^{1304240442405} is an apocalyptic number.

1304240442405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304240442405 is a deficient number, since it is larger than the sum of its proper divisors (783509974299).

1304240442405 is a wasteful number, since it uses less digits than its factorization.

1304240442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40237876.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 1304240442405 its reverse (5042440424031), we get a palindrome (6346680866436).

The spelling of 1304240442405 in words is "one trillion, three hundred four billion, two hundred forty million, four hundred forty-two thousand, four hundred five".