328286540 has 24 divisors (see below), whose sum is σ = 704071872. Its totient is φ = 128520320.

The previous prime is 328286489. The next prime is 328286591. The reversal of 328286540 is 45682823.

It is an interprime number because it is at equal distance from previous prime (328286489) and next prime (328286591).

It is a junction number, because it is equal to n+sod(n) for n = 328286494 and 328286503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173681 + ... + 175560.

It is an arithmetic number, because the mean of its divisors is an integer number (29336328).

Almost surely, 2^328286540 is an apocalyptic number.

It is an amenable number.

328286540 is an abundant number, since it is smaller than the sum of its proper divisors (375785332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328286540 is a wasteful number, since it uses less digits than its factorization.

328286540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349297 (or 349295 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 328286540 is about 18118.6793116938. The cubic root of 328286540 is about 689.8442132366.

The spelling of 328286540 in words is "three hundred twenty-eight million, two hundred eighty-six thousand, five hundred forty".