321322328 has 16 divisors (see below), whose sum is σ = 628674480. Its totient is φ = 153675808.

The previous prime is 321322327. The next prime is 321322333. The reversal of 321322328 is 823223123.

It is a junction number, because it is equal to n+sod(n) for n = 321322297 and 321322306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321322327) 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, 872975 + ... + 873342.

It is an arithmetic number, because the mean of its divisors is an integer number (39292155).

Almost surely, 2^321322328 is an apocalyptic number.

It is an amenable number.

321322328 is a deficient number, since it is larger than the sum of its proper divisors (307352152).

321322328 is a wasteful number, since it uses less digits than its factorization.

321322328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746346 (or 1746342 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 321322328 is about 17925.4659074736. The cubic root of 321322328 is about 684.9312293544.

The spelling of 321322328 in words is "three hundred twenty-one million, three hundred twenty-two thousand, three hundred twenty-eight".