320022442 has 8 divisors (see below), whose sum is σ = 484694496. Its totient is φ = 158457612.

The previous prime is 320022413. The next prime is 320022473. The reversal of 320022442 is 244220023.

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

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, 776548 + ... + 776959.

It is an arithmetic number, because the mean of its divisors is an integer number (60586812).

Almost surely, 2^320022442 is an apocalyptic number.

320022442 is a deficient number, since it is larger than the sum of its proper divisors (164672054).

320022442 is a wasteful number, since it uses less digits than its factorization.

320022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553612.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 320022442 is about 17889.1710819702. The cubic root of 320022442 is about 684.0063679970.

Adding to 320022442 its reverse (244220023), we get a palindrome (564242465).

The spelling of 320022442 in words is "three hundred twenty million, twenty-two thousand, four hundred forty-two".