4543040 has 28 divisors (see below), whose sum is σ = 10818876. Its totient is φ = 1817088.

The previous prime is 4543039. The next prime is 4543043. The reversal of 4543040 is 403454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3444736 + 1098304 = 1856^2 + 1048^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4543043) 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 3 ways as a sum of consecutive naturals, for example, 6779 + ... + 7418.

Almost surely, 2^4543040 is an apocalyptic number.

4543040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4543040 is an abundant number, since it is smaller than the sum of its proper divisors (6275836).

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

4543040 is a wasteful number, since it uses less digits than its factorization.

4543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14214 (or 14204 counting only the distinct ones).

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

The square root of 4543040 is about 2131.4408272340. The cubic root of 4543040 is about 165.6210448800.

Adding to 4543040 its reverse (403454), we get a palindrome (4946494).

The spelling of 4543040 in words is "four million, five hundred forty-three thousand, forty".