4720320 has 168 divisors, whose sum is σ = 17830800. Its totient is φ = 1136640.

The previous prime is 4720307. The next prime is 4720321. The reversal of 4720320 is 230274.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 4720293 and 4720302.

It is not an unprimeable number, because it can be changed into a prime (4720321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31606 + ... + 31754.

Almost surely, 2^4720320 is an apocalyptic number.

4720320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4720320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8915400).

4720320 is an abundant number, since it is smaller than the sum of its proper divisors (13110480).

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

4720320 is a wasteful number, since it uses less digits than its factorization.

4720320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4720320 is about 2172.6297429613. The cubic root of 4720320 is about 167.7479212727.

Adding to 4720320 its reverse (230274), we get a palindrome (4950594).

The spelling of 4720320 in words is "four million, seven hundred twenty thousand, three hundred twenty".