328802643 has 12 divisors (see below), whose sum is σ = 511470960. Its totient is φ = 202340016.

The previous prime is 328802623. The next prime is 328802671. The reversal of 328802643 is 346208823.

328802643 is a `hidden beast` number, since 3 + 2 + 8 + 8 + 0 + 2 + 643 = 666.

It is not a de Polignac number, because 328802643 - 2⁵ = 328802611 is a prime.

It is a super-2 number, since 2×328802643² = 216222356087570898, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 328802598 and 328802607.

It is not an unprimeable number, because it can be changed into a prime (328802623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1405023 + ... + 1405256.

It is an arithmetic number, because the mean of its divisors is an integer number (42622580).

Almost surely, 2^328802643 is an apocalyptic number.

328802643 is a deficient number, since it is larger than the sum of its proper divisors (182668317).

328802643 is a wasteful number, since it uses less digits than its factorization.

328802643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810298 (or 2810295 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 328802643 is about 18132.9160092909. The cubic root of 328802643 is about 690.2055279360.

The spelling of 328802643 in words is "three hundred twenty-eight million, eight hundred two thousand, six hundred forty-three".