328407672 has 32 divisors (see below), whose sum is σ = 828996480. Its totient is φ = 108405600.

The previous prime is 328407643. The next prime is 328407679. The reversal of 328407672 is 276704823.

It is a self number, because there is not a number n which added to its sum of digits gives 328407672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328407679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63954 + ... + 68897.

It is an arithmetic number, because the mean of its divisors is an integer number (25906140).

Almost surely, 2^328407672 is an apocalyptic number.

It is an amenable number.

328407672 is an abundant number, since it is smaller than the sum of its proper divisors (500588808).

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

328407672 is a wasteful number, since it uses less digits than its factorization.

328407672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132963 (or 132959 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 328407672 is about 18122.0217415166. The cubic root of 328407672 is about 689.9290496255.

The spelling of 328407672 in words is "three hundred twenty-eight million, four hundred seven thousand, six hundred seventy-two".