1329395426 has 8 divisors (see below), whose sum is σ = 1994257884. Its totient is φ = 664642800.

The previous prime is 1329395411. The next prime is 1329395437. The reversal of 1329395426 is 6245939231.

It can be written as a sum of positive squares in 2 ways, for example, as 1323868225 + 5527201 = 36385^2 + 2351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17576 + ... + 54476.

Almost surely, 2^1329395426 is an apocalyptic number.

1329395426 is a deficient number, since it is larger than the sum of its proper divisors (664862458).

1329395426 is a wasteful number, since it uses less digits than its factorization.

1329395426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54916.

The product of its digits is 349920, while the sum is 44.

The square root of 1329395426 is about 36460.8752774807. The cubic root of 1329395426 is about 1099.5577908471.

The spelling of 1329395426 in words is "one billion, three hundred twenty-nine million, three hundred ninety-five thousand, four hundred twenty-six".