328467280 has 40 divisors (see below), whose sum is σ = 768772224. Its totient is φ = 130512000.

The previous prime is 328467259. The next prime is 328467281. The reversal of 328467280 is 82764823.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328467281) 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, 1516 + ... + 25675.

Almost surely, 2^328467280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328467280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384386112).

328467280 is an abundant number, since it is smaller than the sum of its proper divisors (440304944).

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

328467280 is a wasteful number, since it uses less digits than its factorization.

328467280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27355 (or 27349 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 328467280 is about 18123.6662957582. Note that the first 3 decimals coincide. The cubic root of 328467280 is about 689.9707892136.

The spelling of 328467280 in words is "three hundred twenty-eight million, four hundred sixty-seven thousand, two hundred eighty".