4423500 has 72 divisors (see below), whose sum is σ = 13968864. Its totient is φ = 1178400.

The previous prime is 4423493. The next prime is 4423511. The reversal of 4423500 is 53244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4009 + ... + 4991.

It is an arithmetic number, because the mean of its divisors is an integer number (194012).

Almost surely, 2^4423500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4423500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6984432).

4423500 is an abundant number, since it is smaller than the sum of its proper divisors (9545364).

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

4423500 is a wasteful number, since it uses less digits than its factorization.

4423500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4423500 is about 2103.2118295597. The cubic root of 4423500 is about 164.1554643196.

Adding to 4423500 its reverse (53244), we get a palindrome (4476744).

The spelling of 4423500 in words is "four million, four hundred twenty-three thousand, five hundred".