328378541 has 4 divisors (see below), whose sum is σ = 328480800. Its totient is φ = 328276284.

The previous prime is 328378537. The next prime is 328378549. The reversal of 328378541 is 145873823.

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.

It is a cyclic number.

It is not a de Polignac number, because 328378541 - 2² = 328378537 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 (328378549) 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, 46151 + ... + 52788.

It is an arithmetic number, because the mean of its divisors is an integer number (82120200).

Almost surely, 2^328378541 is an apocalyptic number.

It is an amenable number.

328378541 is a deficient number, since it is larger than the sum of its proper divisors (102259).

328378541 is an equidigital number, since it uses as much as digits as its factorization.

328378541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102258.

The product of its digits is 161280, while the sum is 41.

The square root of 328378541 is about 18121.2179778292. The cubic root of 328378541 is about 689.9086492520.

The spelling of 328378541 in words is "three hundred twenty-eight million, three hundred seventy-eight thousand, five hundred forty-one".