328690758 has 64 divisors (see below), whose sum is σ = 740689920. Its totient is φ = 96364800.

The previous prime is 328690697. The next prime is 328690759. The reversal of 328690758 is 857096823.

It is a super-2 number, since 2×328690758² = 216075228789229128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328690759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685963 + ... + 686441.

It is an arithmetic number, because the mean of its divisors is an integer number (11573280).

Almost surely, 2^328690758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328690758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370344960).

328690758 is an abundant number, since it is smaller than the sum of its proper divisors (411999162).

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

328690758 is a wasteful number, since it uses less digits than its factorization.

328690758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 328690758 is about 18129.8306114536. The cubic root of 328690758 is about 690.1272313164.

The spelling of 328690758 in words is "three hundred twenty-eight million, six hundred ninety thousand, seven hundred fifty-eight".