1301326688 has 12 divisors (see below), whose sum is σ = 2561986980. Its totient is φ = 650663328.

The previous prime is 1301326661. The next prime is 1301326699. The reversal of 1301326688 is 8866231031.

It is a super-2 number, since 2×1301326688² = 3386902297802098688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20333198 + ... + 20333261.

It is an arithmetic number, because the mean of its divisors is an integer number (213498915).

Almost surely, 2^1301326688 is an apocalyptic number.

It is an amenable number.

1301326688 is a deficient number, since it is larger than the sum of its proper divisors (1260660292).

1301326688 is an equidigital number, since it uses as much as digits as its factorization.

1301326688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40666469 (or 40666461 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1301326688 is about 36073.9059154952. The cubic root of 1301326688 is about 1091.7640229498.

The spelling of 1301326688 in words is "one billion, three hundred one million, three hundred twenty-six thousand, six hundred eighty-eight".