320093881 has 8 divisors (see below), whose sum is σ = 322369344. Its totient is φ = 317826960.

The previous prime is 320093863. The next prime is 320093887. The reversal of 320093881 is 188390023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320093881 is a prime.

It is a super-2 number, since 2×320093881² = 204920185307284322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320093887) 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, 85215 + ... + 88891.

It is an arithmetic number, because the mean of its divisors is an integer number (40296168).

Almost surely, 2^320093881 is an apocalyptic number.

It is an amenable number.

320093881 is a deficient number, since it is larger than the sum of its proper divisors (2275463).

320093881 is a wasteful number, since it uses less digits than its factorization.

320093881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 320093881 is about 17891.1676812890. The cubic root of 320093881 is about 684.0572614021.

The spelling of 320093881 in words is "three hundred twenty million, ninety-three thousand, eight hundred eighty-one".