403304328 has 192 divisors, whose sum is σ = 1337506560. Its totient is φ = 107163648.

The previous prime is 403304309. The next prime is 403304339. The reversal of 403304328 is 823403304.

403304328 is a `hidden beast` number, since 4 + 0 + 330 + 4 + 328 = 666.

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 47 ways as a sum of consecutive naturals, for example, 882276 + ... + 882732.

It is an arithmetic number, because the mean of its divisors is an integer number (6966180).

Almost surely, 2^403304328 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 403304328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668753280).

403304328 is an abundant number, since it is smaller than the sum of its proper divisors (934202232).

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

403304328 is a wasteful number, since it uses less digits than its factorization.

403304328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 403304328 is about 20082.4382981749. The cubic root of 403304328 is about 738.8296132431.

The spelling of 403304328 in words is "four hundred three million, three hundred four thousand, three hundred twenty-eight".