4305440 has 48 divisors (see below), whose sum is σ = 10342080. Its totient is φ = 1693440.

The previous prime is 4305409. The next prime is 4305443. The reversal of 4305440 is 445034.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a d-powerful number, because it can be written as 4⁷ + 3⁵ + 0 + 5⁷ + 4⁷ + 4¹¹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4305443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11171 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

Almost surely, 2^4305440 is an apocalyptic number.

4305440 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 4305440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171040).

4305440 is an abundant number, since it is smaller than the sum of its proper divisors (6036640).

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

4305440 is a wasteful number, since it uses less digits than its factorization.

4305440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4305440 is about 2074.9554212079. The cubic root of 4305440 is about 162.6818791948.

The spelling of 4305440 in words is "four million, three hundred five thousand, four hundred forty".