4421530 has 32 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1608960.

The previous prime is 4421507. The next prime is 4421533. The reversal of 4421530 is 351244.

It is a junction number, because it is equal to n+sod(n) for n = 4421498 and 4421507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4851 + ... + 5689.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^4421530 is an apocalyptic number.

4421530 is a deficient number, since it is larger than the sum of its proper divisors (4287590).

4421530 is a wasteful number, since it uses less digits than its factorization.

4421530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4421530 is about 2102.7434460723. The cubic root of 4421530 is about 164.1310918933.

Adding to 4421530 its reverse (351244), we get a palindrome (4772774).

The spelling of 4421530 in words is "four million, four hundred twenty-one thousand, five hundred thirty".