320745043 has 8 divisors (see below), whose sum is σ = 324672768. Its totient is φ = 316841544.

The previous prime is 320745037. The next prime is 320745059. The reversal of 320745043 is 340547023.

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

It is a cyclic number.

It is not a de Polignac number, because 320745043 - 2⁵ = 320745011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320745083) 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, 21330 + ... + 33112.

It is an arithmetic number, because the mean of its divisors is an integer number (40584096).

Almost surely, 2^320745043 is an apocalyptic number.

320745043 is a deficient number, since it is larger than the sum of its proper divisors (3927725).

320745043 is a wasteful number, since it uses less digits than its factorization.

320745043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12113.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 320745043 is about 17909.3562977568. The cubic root of 320745043 is about 684.5208028989.

The spelling of 320745043 in words is "three hundred twenty million, seven hundred forty-five thousand, forty-three".