320481933 has 4 divisors (see below), whose sum is σ = 427309248. Its totient is φ = 213654620.

The previous prime is 320481883. The next prime is 320481979. The reversal of 320481933 is 339184023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339184023 = 3 ⋅113061341.

It is a cyclic number.

It is not a de Polignac number, because 320481933 - 2⁶ = 320481869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320481894 and 320481903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320411933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53413653 + ... + 53413658.

It is an arithmetic number, because the mean of its divisors is an integer number (106827312).

Almost surely, 2^320481933 is an apocalyptic number.

It is an amenable number.

320481933 is a deficient number, since it is larger than the sum of its proper divisors (106827315).

320481933 is a wasteful number, since it uses less digits than its factorization.

320481933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106827314.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 320481933 is about 17902.0091889151. The cubic root of 320481933 is about 684.3335788696. Note that the first 3 decimals are identical.

The spelling of 320481933 in words is "three hundred twenty million, four hundred eighty-one thousand, nine hundred thirty-three".