320425004 has 12 divisors (see below), whose sum is σ = 574420728. Its totient is φ = 156304800.

The previous prime is 320424977. The next prime is 320425037. The reversal of 320425004 is 400524023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976742 + ... + 977069.

It is an arithmetic number, because the mean of its divisors is an integer number (47868394).

Almost surely, 2^320425004 is an apocalyptic number.

It is an amenable number.

320425004 is a deficient number, since it is larger than the sum of its proper divisors (253995724).

320425004 is a wasteful number, since it uses less digits than its factorization.

320425004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953856 (or 1953854 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 320425004 is about 17900.4191012389. The cubic root of 320425004 is about 684.2930558018.

Adding to 320425004 its reverse (400524023), we get a palindrome (720949027).

The spelling of 320425004 in words is "three hundred twenty million, four hundred twenty-five thousand, four".