1326334401 has 72 divisors (see below), whose sum is σ = 2325346920. Its totient is φ = 725469696.

The previous prime is 1326334393. The next prime is 1326334417. The reversal of 1326334401 is 1044336231.

1326334401 is a `hidden beast` number, since 1 + 326 + 334 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 314140176 + 1012194225 = 17724^2 + 31815^2 .

It is not a de Polignac number, because 1326334401 - 2³ = 1326334393 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326334481) 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 71 ways as a sum of consecutive naturals, for example, 1751715 + ... + 1752471.

It is an arithmetic number, because the mean of its divisors is an integer number (32296485).

Almost surely, 2^1326334401 is an apocalyptic number.

It is an amenable number.

1326334401 is a deficient number, since it is larger than the sum of its proper divisors (999012519).

1326334401 is a wasteful number, since it uses less digits than its factorization.

1326334401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1326334401 is about 36418.8742412502. The cubic root of 1326334401 is about 1098.7132062990.

The spelling of 1326334401 in words is "one billion, three hundred twenty-six million, three hundred thirty-four thousand, four hundred one".