320542030 has 16 divisors (see below), whose sum is σ = 602061984. Its totient is φ = 122642080.

The previous prime is 320542009. The next prime is 320542037. The reversal of 320542030 is 30245023.

It is a junction number, because it is equal to n+sod(n) for n = 320541989 and 320542007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320542037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696601 + ... + 697060.

It is an arithmetic number, because the mean of its divisors is an integer number (37628874).

Almost surely, 2^320542030 is an apocalyptic number.

320542030 is a deficient number, since it is larger than the sum of its proper divisors (281519954).

320542030 is a wasteful number, since it uses less digits than its factorization.

320542030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393691.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 320542030 is about 17903.6876089816. The cubic root of 320542030 is about 684.3763517693.

Adding to 320542030 its reverse (30245023), we get a palindrome (350787053).

The spelling of 320542030 in words is "three hundred twenty million, five hundred forty-two thousand, thirty".