320847378 has 16 divisors (see below), whose sum is σ = 669594816. Its totient is φ = 102299120.

The previous prime is 320847353. The next prime is 320847383. The reversal of 320847378 is 873748023.

320847378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162353 + ... + 1162628.

It is an arithmetic number, because the mean of its divisors is an integer number (41849676).

Almost surely, 2^320847378 is an apocalyptic number.

320847378 is an abundant number, since it is smaller than the sum of its proper divisors (348747438).

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

320847378 is a wasteful number, since it uses less digits than its factorization.

320847378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325009.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 320847378 is about 17912.2130960973. The cubic root of 320847378 is about 684.5935948658.

The spelling of 320847378 in words is "three hundred twenty million, eight hundred forty-seven thousand, three hundred seventy-eight".