328650580 has 12 divisors (see below), whose sum is σ = 690166260. Its totient is φ = 131460224.

The previous prime is 328650559. The next prime is 328650589. The reversal of 328650580 is 85056823.

It can be written as a sum of positive squares in 2 ways, for example, as 248440644 + 80209936 = 15762^2 + 8956^2 .

It is a super-2 number, since 2×328650580² = 216022407468672800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328650589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8216245 + ... + 8216284.

It is an arithmetic number, because the mean of its divisors is an integer number (57513855).

Almost surely, 2^328650580 is an apocalyptic number.

It is an amenable number.

328650580 is an abundant number, since it is smaller than the sum of its proper divisors (361515680).

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

328650580 is a wasteful number, since it uses less digits than its factorization.

328650580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16432538 (or 16432536 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 328650580 is about 18128.7225142865. The cubic root of 328650580 is about 690.0991105969.

The spelling of 328650580 in words is "three hundred twenty-eight million, six hundred fifty thousand, five hundred eighty".