320534361 has 32 divisors (see below), whose sum is σ = 561427200. Its totient is φ = 176843520.

The previous prime is 320534359. The next prime is 320534381. The reversal of 320534361 is 163435023.

It is a happy number.

It is not a de Polignac number, because 320534361 - 2¹ = 320534359 is a prime.

It is a super-4 number, since 4×320534361⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320534381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23760 + ... + 34721.

It is an arithmetic number, because the mean of its divisors is an integer number (17544600).

Almost surely, 2^320534361 is an apocalyptic number.

It is an amenable number.

320534361 is a deficient number, since it is larger than the sum of its proper divisors (240892839).

320534361 is a wasteful number, since it uses less digits than its factorization.

320534361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58526 (or 58520 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 320534361 is about 17903.4734339457. The cubic root of 320534361 is about 684.3708938016.

Adding to 320534361 its reverse (163435023), we get a palindrome (483969384).

The spelling of 320534361 in words is "three hundred twenty million, five hundred thirty-four thousand, three hundred sixty-one".