1328411801 has 4 divisors (see below), whose sum is σ = 1328740452. Its totient is φ = 1328083152.

The previous prime is 1328411789. The next prime is 1328411803. The reversal of 1328411801 is 1081148231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192654400 + 1135757401 = 13880^2 + 33701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328411801 - 2⁶ = 1328411737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328411803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158186 + ... + 166371.

It is an arithmetic number, because the mean of its divisors is an integer number (332185113).

Almost surely, 2^1328411801 is an apocalyptic number.

It is an amenable number.

1328411801 is a deficient number, since it is larger than the sum of its proper divisors (328651).

1328411801 is an equidigital number, since it uses as much as digits as its factorization.

1328411801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328650.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1328411801 is about 36447.3840076349. The cubic root of 1328411801 is about 1099.2865348639.

The spelling of 1328411801 in words is "one billion, three hundred twenty-eight million, four hundred eleven thousand, eight hundred one".