320947040 has 24 divisors (see below), whose sum is σ = 758237760. Its totient is φ = 128378752.

The previous prime is 320947021. The next prime is 320947049. The reversal of 320947040 is 40749023.

320947040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 320946994 and 320947012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320947049) 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, 1002800 + ... + 1003119.

It is an arithmetic number, because the mean of its divisors is an integer number (31593240).

Almost surely, 2^320947040 is an apocalyptic number.

It is an amenable number.

320947040 is an abundant number, since it is smaller than the sum of its proper divisors (437290720).

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

320947040 is a wasteful number, since it uses less digits than its factorization.

320947040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005934 (or 2005926 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 320947040 is about 17914.9948367283. The cubic root of 320947040 is about 684.6644706242.

The spelling of 320947040 in words is "three hundred twenty million, nine hundred forty-seven thousand, forty".