328151220 has 48 divisors (see below), whose sum is σ = 919900800. Its totient is φ = 87404416.

The previous prime is 328151203. The next prime is 328151231. The reversal of 328151220 is 22151823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58081 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (19164600).

Almost surely, 2^328151220 is an apocalyptic number.

328151220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328151220 is an abundant number, since it is smaller than the sum of its proper divisors (591749580).

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

328151220 is a wasteful number, since it uses less digits than its factorization.

328151220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 328151220 is about 18114.9446590377. The cubic root of 328151220 is about 689.7494154134.

The spelling of 328151220 in words is "three hundred twenty-eight million, one hundred fifty-one thousand, two hundred twenty".