328685240 has 32 divisors (see below), whose sum is σ = 796430880. Its totient is φ = 121360512.

The previous prime is 328685239. The next prime is 328685251. The reversal of 328685240 is 42586823.

It is a junction number, because it is equal to n+sod(n) for n = 328685194 and 328685203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315524 + ... + 316563.

It is an arithmetic number, because the mean of its divisors is an integer number (24888465).

Almost surely, 2^328685240 is an apocalyptic number.

It is an amenable number.

328685240 is an abundant number, since it is smaller than the sum of its proper divisors (467745640).

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

328685240 is a wasteful number, since it uses less digits than its factorization.

328685240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632111 (or 632107 counting only the distinct ones).

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

The square root of 328685240 is about 18129.6784306838. The cubic root of 328685240 is about 690.1233693851.

The spelling of 328685240 in words is "three hundred twenty-eight million, six hundred eighty-five thousand, two hundred forty".