320670043 has 4 divisors (see below), whose sum is σ = 323612080. Its totient is φ = 317728008.

The previous prime is 320670037. The next prime is 320670067. The reversal of 320670043 is 340076023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320670043 - 2¹³ = 320661851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320670013) 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, 1470855 + ... + 1471072.

It is an arithmetic number, because the mean of its divisors is an integer number (80903020).

Almost surely, 2^320670043 is an apocalyptic number.

320670043 is a deficient number, since it is larger than the sum of its proper divisors (2942037).

320670043 is a wasteful number, since it uses less digits than its factorization.

320670043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942036.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 320670043 is about 17907.2622977383. The cubic root of 320670043 is about 684.4674447739.

The spelling of 320670043 in words is "three hundred twenty million, six hundred seventy thousand, forty-three".