1304242005 has 32 divisors (see below), whose sum is σ = 2281310208. Its totient is φ = 631022400.

The previous prime is 1304242003. The next prime is 1304242019. The reversal of 1304242005 is 5002424031.

It is not a de Polignac number, because 1304242005 - 2¹ = 1304242003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304242001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72240 + ... + 88470.

It is an arithmetic number, because the mean of its divisors is an integer number (71290944).

Almost surely, 2^1304242005 is an apocalyptic number.

1304242005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304242005 is a deficient number, since it is larger than the sum of its proper divisors (977068203).

1304242005 is a wasteful number, since it uses less digits than its factorization.

1304242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16737.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1304242005 is about 36114.2908694051. The cubic root of 1304242005 is about 1092.5786952373.

Adding to 1304242005 its reverse (5002424031), we get a palindrome (6306666036).

The spelling of 1304242005 in words is "one billion, three hundred four million, two hundred forty-two thousand, five".