320425772 has 12 divisors (see below), whose sum is σ = 575900640. Its totient is φ = 155882736.

The previous prime is 320425753. The next prime is 320425789. The reversal of 320425772 is 277524023.

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, 1082372 + ... + 1082667.

It is an arithmetic number, because the mean of its divisors is an integer number (47991720).

Almost surely, 2^320425772 is an apocalyptic number.

It is an amenable number.

320425772 is a deficient number, since it is larger than the sum of its proper divisors (255474868).

320425772 is a wasteful number, since it uses less digits than its factorization.

320425772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165080 (or 2165078 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 320425772 is about 17900.4405532378. The cubic root of 320425772 is about 684.2936025097.

Adding to 320425772 its reverse (277524023), we get a palindrome (597949795).

The spelling of 320425772 in words is "three hundred twenty million, four hundred twenty-five thousand, seven hundred seventy-two".