920320 has 36 divisors (see below), whose sum is σ = 2207520. Its totient is φ = 367616.

The previous prime is 920291. The next prime is 920323. The reversal of 920320 is 23029.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 920294 and 920303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920323) by changing a digit.

920320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (61320).

2⁹²⁰³²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 920320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103760).

920320 is an abundant number, since it is smaller than the sum of its proper divisors (1287200).

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

920320 is an equidigital number, since it uses as much as digits as its factorization.

920320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 920320 is about 959.3331016910. Note that the first 3 decimals coincide. The cubic root of 920320 is about 97.2701577069.

Adding to 920320 its reverse (23029), we get a palindrome (943349).

The spelling of 920320 in words is "nine hundred twenty thousand, three hundred twenty".