320424445 has 8 divisors (see below), whose sum is σ = 419464800. Its totient is φ = 233035920.

The previous prime is 320424439. The next prime is 320424469. The reversal of 320424445 is 544424023.

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

It is not a de Polignac number, because 320424445 - 2³ = 320424437 is a prime.

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, 2912895 + ... + 2913004.

It is an arithmetic number, because the mean of its divisors is an integer number (52433100).

Almost surely, 2^320424445 is an apocalyptic number.

It is an amenable number.

320424445 is a deficient number, since it is larger than the sum of its proper divisors (99040355).

320424445 is a wasteful number, since it uses less digits than its factorization.

320424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825915.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 320424445 is about 17900.4034870726. The cubic root of 320424445 is about 684.2926578719.

Adding to 320424445 its reverse (544424023), we get a palindrome (864848468).

The spelling of 320424445 in words is "three hundred twenty million, four hundred twenty-four thousand, four hundred forty-five".