328801805 has 8 divisors (see below), whose sum is σ = 395824632. Its totient is φ = 262199808.

The previous prime is 328801799. The next prime is 328801831. The reversal of 328801805 is 508108823.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 328733161 = 262^2 + 18131^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 328801805 - 2⁴ = 328801789 is a prime.

It is a super-2 number, since 2×328801805² = 216221253942516050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103484 + ... + 106613.

It is an arithmetic number, because the mean of its divisors is an integer number (49478079).

Almost surely, 2^328801805 is an apocalyptic number.

It is an amenable number.

328801805 is a deficient number, since it is larger than the sum of its proper divisors (67022827).

328801805 is a wasteful number, since it uses less digits than its factorization.

328801805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210415.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 328801805 is about 18132.8929021268. The cubic root of 328801805 is about 690.2049415734.

The spelling of 328801805 in words is "three hundred twenty-eight million, eight hundred one thousand, eight hundred five".