328577860 has 24 divisors (see below), whose sum is σ = 743092056. Its totient is φ = 121320960.

The previous prime is 328577857. The next prime is 328577861. The reversal of 328577860 is 68775823.

It can be written as a sum of positive squares in 4 ways, for example, as 17690436 + 310887424 = 4206^2 + 17632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 328577860.

It is not an unprimeable number, because it can be changed into a prime (328577861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631621 + ... + 632140.

It is an arithmetic number, because the mean of its divisors is an integer number (30962169).

Almost surely, 2^328577860 is an apocalyptic number.

It is an amenable number.

328577860 is an abundant number, since it is smaller than the sum of its proper divisors (414514196).

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

328577860 is a wasteful number, since it uses less digits than its factorization.

328577860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263783 (or 1263781 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 328577860 is about 18126.7167462836. The cubic root of 328577860 is about 690.0482077919.

The spelling of 328577860 in words is "three hundred twenty-eight million, five hundred seventy-seven thousand, eight hundred sixty".