320045120 has 56 divisors (see below), whose sum is σ = 802233600. Its totient is φ = 121277952.

The previous prime is 320045113. The next prime is 320045149. The reversal of 320045120 is 21540023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20240 + ... + 32399.

It is an arithmetic number, because the mean of its divisors is an integer number (14325600).

Almost surely, 2^320045120 is an apocalyptic number.

It is an amenable number.

320045120 is an abundant number, since it is smaller than the sum of its proper divisors (482188480).

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

320045120 is a wasteful number, since it uses less digits than its factorization.

320045120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52675 (or 52665 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 320045120 is about 17889.8049178855. The cubic root of 320045120 is about 684.0225247077.

Adding to 320045120 its reverse (21540023), we get a palindrome (341585143).

The spelling of 320045120 in words is "three hundred twenty million, forty-five thousand, one hundred twenty".