1326488769 has 12 divisors (see below), whose sum is σ = 1916600400. Its totient is φ = 884066904.

The previous prime is 1326488731. The next prime is 1326488771. The reversal of 1326488769 is 9678846231.

It is not a de Polignac number, because 1326488769 - 2¹² = 1326484673 is a prime.

It is a super-2 number, since 2×1326488769² = 3519144908566270722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1326480769) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 13942 + ... + 53360.

It is an arithmetic number, because the mean of its divisors is an integer number (159716700).

Almost surely, 2^1326488769 is an apocalyptic number.

It is an amenable number.

1326488769 is a deficient number, since it is larger than the sum of its proper divisors (590111631).

1326488769 is a wasteful number, since it uses less digits than its factorization.

1326488769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43164 (or 43161 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1326488769 is about 36420.9935202213. The cubic root of 1326488769 is about 1098.7558299341.

The spelling of 1326488769 in words is "one billion, three hundred twenty-six million, four hundred eighty-eight thousand, seven hundred sixty-nine".