320925408 has 24 divisors (see below), whose sum is σ = 842429448. Its totient is φ = 106975104.

The previous prime is 320925391. The next prime is 320925419. The reversal of 320925408 is 804529023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1671391 + ... + 1671582.

It is an arithmetic number, because the mean of its divisors is an integer number (35101227).

Almost surely, 2^320925408 is an apocalyptic number.

It is an amenable number.

320925408 is an abundant number, since it is smaller than the sum of its proper divisors (521504040).

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

320925408 is a wasteful number, since it uses less digits than its factorization.

320925408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342986 (or 3342978 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 320925408 is about 17914.3910864980. The cubic root of 320925408 is about 684.6490880296.

The spelling of 320925408 in words is "three hundred twenty million, nine hundred twenty-five thousand, four hundred eight".