4320630 has 48 divisors (see below), whose sum is σ = 11432304. Its totient is φ = 1131840.

The previous prime is 4320607. The next prime is 4320637. The reversal of 4320630 is 360234.

4320630 is a `hidden beast` number, since 4 + 32 + 0 + 630 = 666.

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

It is a d-powerful number, because it can be written as 4¹¹ + 3¹⁰ + 2¹³ + 0 + 6² + 3¹⁰ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320637) 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 23 ways as a sum of consecutive naturals, for example, 5097 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (238173).

Almost surely, 2^4320630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4320630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5716152).

4320630 is an abundant number, since it is smaller than the sum of its proper divisors (7111674).

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

4320630 is a wasteful number, since it uses less digits than its factorization.

4320630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 4320630 is about 2078.6125180033. The cubic root of 4320630 is about 162.8729736623.

Adding to 4320630 its reverse (360234), we get a palindrome (4680864).

It can be divided in two parts, 4320 and 630, that added together give a triangular number (4950 = T₉₉).

The spelling of 4320630 in words is "four million, three hundred twenty thousand, six hundred thirty".