320043894 has 16 divisors (see below), whose sum is σ = 640848432. Its totient is φ = 106554528.

The previous prime is 320043869. The next prime is 320043901. The reversal of 320043894 is 498340023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26149 + ... + 36384.

It is an arithmetic number, because the mean of its divisors is an integer number (40053027).

Almost surely, 2^320043894 is an apocalyptic number.

320043894 is an abundant number, since it is smaller than the sum of its proper divisors (320804538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320043894 is a wasteful number, since it uses less digits than its factorization.

320043894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63391.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 320043894 is about 17889.7706525265. The cubic root of 320043894 is about 684.0216512759.

The spelling of 320043894 in words is "three hundred twenty million, forty-three thousand, eight hundred ninety-four".