4522240 has 36 divisors (see below), whose sum is σ = 10835244. Its totient is φ = 1808384.

The previous prime is 4522229. The next prime is 4522241. The reversal of 4522240 is 422254.

It can be written as a sum of positive squares in 2 ways, for example, as 2715904 + 1806336 = 1648^2 + 1344^2 .

It is not an unprimeable number, because it can be changed into a prime (4522241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487 + ... + 3046.

It is an arithmetic number, because the mean of its divisors is an integer number (300979).

Almost surely, 2^4522240 is an apocalyptic number.

4522240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4522240 is an abundant number, since it is smaller than the sum of its proper divisors (6313004).

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

4522240 is an equidigital number, since it uses as much as digits as its factorization.

4522240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4522240 is about 2126.5559009817. Note that the first 3 decimals coincide. The cubic root of 4522240 is about 165.3678965779.

Adding to 4522240 its reverse (422254), we get a palindrome (4944494).

The spelling of 4522240 in words is "four million, five hundred twenty-two thousand, two hundred forty".