328402404 has 96 divisors (see below), whose sum is σ = 932359680. Its totient is φ = 99136800.

The previous prime is 328402381. The next prime is 328402411. The reversal of 328402404 is 404204823.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583027 + ... + 583589.

It is an arithmetic number, because the mean of its divisors is an integer number (9712080).

Almost surely, 2^328402404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328402404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466179840).

328402404 is an abundant number, since it is smaller than the sum of its proper divisors (603957276).

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

328402404 is a wasteful number, since it uses less digits than its factorization.

328402404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 328402404 is about 18121.8763929125. The cubic root of 328402404 is about 689.9253605463.

The spelling of 328402404 in words is "three hundred twenty-eight million, four hundred two thousand, four hundred four".