328256745 has 16 divisors (see below), whose sum is σ = 525450240. Its totient is φ = 174990464.

The previous prime is 328256743. The next prime is 328256801. The reversal of 328256745 is 547652823.

It is a cyclic number.

It is not a de Polignac number, because 328256745 - 2¹ = 328256743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328256697 and 328256706.

It is not an unprimeable number, because it can be changed into a prime (328256743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45496 + ... + 52214.

It is an arithmetic number, because the mean of its divisors is an integer number (32840640).

Almost surely, 2^328256745 is an apocalyptic number.

It is an amenable number.

328256745 is a deficient number, since it is larger than the sum of its proper divisors (197193495).

328256745 is a wasteful number, since it uses less digits than its factorization.

328256745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9984.

The product of its digits is 403200, while the sum is 42.

The square root of 328256745 is about 18117.8570752725. The cubic root of 328256745 is about 689.8233427189.

The spelling of 328256745 in words is "three hundred twenty-eight million, two hundred fifty-six thousand, seven hundred forty-five".