328265280 has 336 divisors, whose sum is σ = 1359895680. Its totient is φ = 71000064.

The previous prime is 328265279. The next prime is 328265309. The reversal of 328265280 is 82562823.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382612 + ... + 383468.

Almost surely, 2^328265280 is an apocalyptic number.

328265280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328265280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679947840).

328265280 is an abundant number, since it is smaller than the sum of its proper divisors (1031630400).

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

328265280 is a wasteful number, since it uses less digits than its factorization.

328265280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 328265280 is about 18118.0926148422. The cubic root of 328265280 is about 689.8293213634.

The spelling of 328265280 in words is "three hundred twenty-eight million, two hundred sixty-five thousand, two hundred eighty".