405760328 has 8 divisors (see below), whose sum is σ = 760800630. Its totient is φ = 202880160.

The previous prime is 405760283. The next prime is 405760339. The reversal of 405760328 is 823067504.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 397683364 + 8076964 = 19942^2 + 2842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 25360013 + ... + 25360028.

Almost surely, 2^405760328 is an apocalyptic number.

It is an amenable number.

405760328 is a deficient number, since it is larger than the sum of its proper divisors (355040302).

405760328 is a wasteful number, since it uses less digits than its factorization.

405760328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50720047 (or 50720043 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 405760328 is about 20143.4934408111. The cubic root of 405760328 is about 740.3263279508.

The spelling of 405760328 in words is "four hundred five million, seven hundred sixty thousand, three hundred twenty-eight".