1328213758 has 8 divisors (see below), whose sum is σ = 1992738528. Its totient is φ = 663967584.

The previous prime is 1328213741. The next prime is 1328213771. The reversal of 1328213758 is 8573128231.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1328213758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57291 + ... + 77062.

It is an arithmetic number, because the mean of its divisors is an integer number (249092316).

Almost surely, 2^1328213758 is an apocalyptic number.

1328213758 is a deficient number, since it is larger than the sum of its proper divisors (664524770).

1328213758 is a wasteful number, since it uses less digits than its factorization.

1328213758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139298.

The product of its digits is 80640, while the sum is 40.

The square root of 1328213758 is about 36444.6670721520. The cubic root of 1328213758 is about 1099.2319040075.

The spelling of 1328213758 in words is "one billion, three hundred twenty-eight million, two hundred thirteen thousand, seven hundred fifty-eight".