320540334 has 8 divisors (see below), whose sum is σ = 641080680. Its totient is φ = 106846776.

The previous prime is 320540327. The next prime is 320540357. The reversal of 320540334 is 433045023.

It is a sphenic number, since it is the product of 3 distinct primes.

320540334 is an admirable number.

It is a super-2 number, since 2×320540334² = 205492211441663112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 26711689 + ... + 26711700.

It is an arithmetic number, because the mean of its divisors is an integer number (80135085).

Almost surely, 2^320540334 is an apocalyptic number.

320540334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320540334 is a wasteful number, since it uses less digits than its factorization.

320540334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53423394.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 320540334 is about 17903.6402443749. The cubic root of 320540334 is about 684.3751447467.

Adding to 320540334 its reverse (433045023), we get a palindrome (753585357).

The spelling of 320540334 in words is "three hundred twenty million, five hundred forty thousand, three hundred thirty-four".