1301285728 has 24 divisors (see below), whose sum is σ = 2597994000. Its totient is φ = 641477760.

The previous prime is 1301285719. The next prime is 1301285761. The reversal of 1301285728 is 8275821031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284103 + ... + 288646.

It is an arithmetic number, because the mean of its divisors is an integer number (108249750).

Almost surely, 2^1301285728 is an apocalyptic number.

It is an amenable number.

1301285728 is a deficient number, since it is larger than the sum of its proper divisors (1296708272).

1301285728 is an equidigital number, since it uses as much as digits as its factorization.

1301285728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572830 (or 572822 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1301285728 is about 36073.3381876421. The cubic root of 1301285728 is about 1091.7525681978.

The spelling of 1301285728 in words is "one billion, three hundred one million, two hundred eighty-five thousand, seven hundred twenty-eight".