4420520 has 32 divisors (see below), whose sum is σ = 10712520. Its totient is φ = 1632000.

The previous prime is 4420519. The next prime is 4420523. The reversal of 4420520 is 250244.

4420520 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 1684804 + 2735716 = 1298^2 + 1654^2 .

It is not an unprimeable number, because it can be changed into a prime (4420523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731 + ... + 4770.

Almost surely, 2^4420520 is an apocalyptic number.

4420520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4420520 is an abundant number, since it is smaller than the sum of its proper divisors (6292000).

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

4420520 is a wasteful number, since it uses less digits than its factorization.

4420520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525 (or 8521 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4420520 is about 2102.5032699142. The cubic root of 4420520 is about 164.1185935781.

Adding to 4420520 its reverse (250244), we get a palindrome (4670764).

The spelling of 4420520 in words is "four million, four hundred twenty thousand, five hundred twenty".