328655250 has 288 divisors, whose sum is σ = 1131916032. Its totient is φ = 68040000.

The previous prime is 328655219. The next prime is 328655267. The reversal of 328655250 is 52556823.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1212615 + ... + 1212885.

It is an arithmetic number, because the mean of its divisors is an integer number (3930264).

Almost surely, 2^328655250 is an apocalyptic number.

328655250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 328655250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565958016).

328655250 is an abundant number, since it is smaller than the sum of its proper divisors (803260782).

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

328655250 is a wasteful number, since it uses less digits than its factorization.

328655250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 328655250 is about 18128.8513149620. The cubic root of 328655250 is about 690.1023792636.

The spelling of 328655250 in words is "three hundred twenty-eight million, six hundred fifty-five thousand, two hundred fifty".