328103640 has 96 divisors (see below), whose sum is σ = 1068584400. Its totient is φ = 87310080.

The previous prime is 328103627. The next prime is 328103641. The reversal of 328103640 is 46301823.

It is a happy number.

328103640 is a `hidden beast` number, since 3 + 2 + 8 + 10 + 3 + 640 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328103641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308710 + ... + 309770.

Almost surely, 2^328103640 is an apocalyptic number.

328103640 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 328103640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534292200).

328103640 is an abundant number, since it is smaller than the sum of its proper divisors (740480760).

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

328103640 is a wasteful number, since it uses less digits than its factorization.

328103640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 328103640 is about 18113.6313311274. The cubic root of 328103640 is about 689.7160772637.

The spelling of 328103640 in words is "three hundred twenty-eight million, one hundred three thousand, six hundred forty".