328691022 has 128 divisors (see below), whose sum is σ = 812187648. Its totient is φ = 87436800.

The previous prime is 328690991. The next prime is 328691029. The reversal of 328691022 is 220196823.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328691029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1212747 + ... + 1213017.

It is an arithmetic number, because the mean of its divisors is an integer number (6345216).

Almost surely, 2^328691022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328691022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406093824).

328691022 is an abundant number, since it is smaller than the sum of its proper divisors (483496626).

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

328691022 is a wasteful number, since it uses less digits than its factorization.

328691022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 328691022 is about 18129.8378922703. The cubic root of 328691022 is about 690.1274160833.

The spelling of 328691022 in words is "three hundred twenty-eight million, six hundred ninety-one thousand, twenty-two".