320117572 has 12 divisors (see below), whose sum is σ = 560449260. Its totient is φ = 159989216.

The previous prime is 320117561. The next prime is 320117579. The reversal of 320117572 is 275711023.

It can be written as a sum of positive squares in 2 ways, for example, as 237961476 + 82156096 = 15426^2 + 9064^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320117572.

It is not an unprimeable number, because it can be changed into a prime (320117579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6247 + ... + 26062.

It is an arithmetic number, because the mean of its divisors is an integer number (46704105).

Almost surely, 2^320117572 is an apocalyptic number.

It is an amenable number.

320117572 is a deficient number, since it is larger than the sum of its proper divisors (240331688).

320117572 is a wasteful number, since it uses less digits than its factorization.

320117572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34790 (or 34788 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 320117572 is about 17891.8297555057. The cubic root of 320117572 is about 684.0741372852.

Adding to 320117572 its reverse (275711023), we get a palindrome (595828595).

The spelling of 320117572 in words is "three hundred twenty million, one hundred seventeen thousand, five hundred seventy-two".