1328042413 has 4 divisors (see below), whose sum is σ = 1344043008. Its totient is φ = 1312041820.

The previous prime is 1328042393. The next prime is 1328042437. The reversal of 1328042413 is 3142408231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3142408231 = 17 ⋅184847543.

It is a cyclic number.

It is not a de Polignac number, because 1328042413 - 2⁹ = 1328041901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328042453) 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, 8000173 + ... + 8000338.

It is an arithmetic number, because the mean of its divisors is an integer number (336010752).

Almost surely, 2^1328042413 is an apocalyptic number.

It is an amenable number.

1328042413 is a deficient number, since it is larger than the sum of its proper divisors (16000595).

1328042413 is an equidigital number, since it uses as much as digits as its factorization.

1328042413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16000594.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1328042413 is about 36442.3162408758. The cubic root of 1328042413 is about 1099.1846335063.

The spelling of 1328042413 in words is "one billion, three hundred twenty-eight million, forty-two thousand, four hundred thirteen".