320422403 has 8 divisors (see below), whose sum is σ = 385470720. Its totient is φ = 260192520.

The previous prime is 320422393. The next prime is 320422481. The reversal of 320422403 is 304224023.

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

It is not a de Polignac number, because 320422403 - 2⁴ = 320422387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320422493) 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, 1204463 + ... + 1204728.

It is an arithmetic number, because the mean of its divisors is an integer number (48183840).

Almost surely, 2^320422403 is an apocalyptic number.

320422403 is a deficient number, since it is larger than the sum of its proper divisors (65048317).

320422403 is a wasteful number, since it uses less digits than its factorization.

320422403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409217.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 320422403 is about 17900.3464491613. The cubic root of 320422403 is about 684.2912042494.

Adding to 320422403 its reverse (304224023), we get a palindrome (624646426).

The spelling of 320422403 in words is "three hundred twenty million, four hundred twenty-two thousand, four hundred three".