4240320 has 112 divisors (see below), whose sum is σ = 15410688. Its totient is φ = 967680.

The previous prime is 4240319. The next prime is 4240381. The reversal of 4240320 is 230424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 4240320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6405 + ... + 7035.

Almost surely, 2^4240320 is an apocalyptic number.

4240320 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 4240320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7705344).

4240320 is an abundant number, since it is smaller than the sum of its proper divisors (11170368).

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

4240320 is a wasteful number, since it uses less digits than its factorization.

4240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4240320 is about 2059.2037296004. The cubic root of 4240320 is about 161.8575183737.

Adding to 4240320 its reverse (230424), we get a palindrome (4470744).

It can be divided in two parts, 4240 and 320, that added together give a triangular number (4560 = T₉₅).

The spelling of 4240320 in words is "four million, two hundred forty thousand, three hundred twenty".