1305240302 has 32 divisors (see below), whose sum is σ = 2110281600. Its totient is φ = 603612000.

The previous prime is 1305240281. The next prime is 1305240311. The reversal of 1305240302 is 2030425031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 320177 + ... + 324227.

It is an arithmetic number, because the mean of its divisors is an integer number (65946300).

Almost surely, 2^1305240302 is an apocalyptic number.

1305240302 is a deficient number, since it is larger than the sum of its proper divisors (805041298).

1305240302 is a wasteful number, since it uses less digits than its factorization.

1305240302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1305240302 is about 36128.1095824290. The cubic root of 1305240302 is about 1092.8573858129.

Adding to 1305240302 its reverse (2030425031), we get a palindrome (3335665333).

The spelling of 1305240302 in words is "one billion, three hundred five million, two hundred forty thousand, three hundred two".