328574730 has 64 divisors (see below), whose sum is σ = 865178496. Its totient is φ = 79200000.

The previous prime is 328574713. The next prime is 328574749. The reversal of 328574730 is 37475823.

It is a super-2 number, since 2×328574730² = 215922706389145800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56980 + ... + 62480.

It is an arithmetic number, because the mean of its divisors is an integer number (13518414).

Almost surely, 2^328574730 is an apocalyptic number.

328574730 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 328574730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432589248).

328574730 is an abundant number, since it is smaller than the sum of its proper divisors (536603766).

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

328574730 is a wasteful number, since it uses less digits than its factorization.

328574730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 328574730 is about 18126.6304094280. The cubic root of 328574730 is about 690.0460166748.

The spelling of 328574730 in words is "three hundred twenty-eight million, five hundred seventy-four thousand, seven hundred thirty".