320481743 has 4 divisors (see below), whose sum is σ = 320518488. Its totient is φ = 320445000.

The previous prime is 320481737. The next prime is 320481817. The reversal of 320481743 is 347184023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 347184023 = 41 ⋅8467903.

It is a cyclic number.

It is not a de Polignac number, because 320481743 - 2⁴ = 320481727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320481443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993 + ... + 25493.

It is an arithmetic number, because the mean of its divisors is an integer number (80129622).

Almost surely, 2^320481743 is an apocalyptic number.

320481743 is a deficient number, since it is larger than the sum of its proper divisors (36745).

320481743 is a wasteful number, since it uses less digits than its factorization.

320481743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36744.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 320481743 is about 17902.0038822474. The cubic root of 320481743 is about 684.3334436322. Note that the first 3 decimals are identical.

The spelling of 320481743 in words is "three hundred twenty million, four hundred eighty-one thousand, seven hundred forty-three".