320022455 has 16 divisors (see below), whose sum is σ = 397156608. Its totient is φ = 247296000.

The previous prime is 320022413. The next prime is 320022473. The reversal of 320022455 is 554220023.

It is not a de Polignac number, because 320022455 - 2¹² = 320018359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320022455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97745 + ... + 100965.

It is an arithmetic number, because the mean of its divisors is an integer number (24822288).

Almost surely, 2^320022455 is an apocalyptic number.

320022455 is a deficient number, since it is larger than the sum of its proper divisors (77134153).

320022455 is a wasteful number, since it uses less digits than its factorization.

320022455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 320022455 is about 17889.1714453185. The cubic root of 320022455 is about 684.0063772589.

Adding to 320022455 its reverse (554220023), we get a palindrome (874242478).

The spelling of 320022455 in words is "three hundred twenty million, twenty-two thousand, four hundred fifty-five".