328120785 has 24 divisors (see below), whose sum is σ = 598678080. Its totient is φ = 165786912.

The previous prime is 328120781. The next prime is 328120787. The reversal of 328120785 is 587021823.

It is not a de Polignac number, because 328120785 - 2² = 328120781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328120781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191029 + ... + 192738.

It is an arithmetic number, because the mean of its divisors is an integer number (24944920).

Almost surely, 2^328120785 is an apocalyptic number.

It is an amenable number.

328120785 is a deficient number, since it is larger than the sum of its proper divisors (270557295).

328120785 is a wasteful number, since it uses less digits than its factorization.

328120785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383797 (or 383794 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 328120785 is about 18114.1045873099. The cubic root of 328120785 is about 689.7280907200.

The spelling of 328120785 in words is "three hundred twenty-eight million, one hundred twenty thousand, seven hundred eighty-five".