320242245 has 64 divisors (see below), whose sum is σ = 566108160. Its totient is φ = 153964800.

The previous prime is 320242201. The next prime is 320242259. The reversal of 320242245 is 542242023.

It is a happy number.

It is not a de Polignac number, because 320242245 - 2⁸ = 320241989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 591675 + ... + 592215.

It is an arithmetic number, because the mean of its divisors is an integer number (8845440).

Almost surely, 2^320242245 is an apocalyptic number.

It is an amenable number.

320242245 is a deficient number, since it is larger than the sum of its proper divisors (245865915).

320242245 is a wasteful number, since it uses less digits than its factorization.

320242245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 320242245 is about 17895.3134926438. The cubic root of 320242245 is about 684.1629322707.

Adding to 320242245 its reverse (542242023), we get a palindrome (862484268).

The spelling of 320242245 in words is "three hundred twenty million, two hundred forty-two thousand, two hundred forty-five".