4023630 has 96 divisors (see below), whose sum is σ = 11924640. Its totient is φ = 933120.

The previous prime is 4023629. The next prime is 4023631. The reversal of 4023630 is 363204.

It is an interprime number because it is at equal distance from previous prime (4023629) and next prime (4023631).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023631) 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 47 ways as a sum of consecutive naturals, for example, 22140 + ... + 22320.

It is an arithmetic number, because the mean of its divisors is an integer number (124215).

Almost surely, 2^4023630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4023630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5962320).

4023630 is an abundant number, since it is smaller than the sum of its proper divisors (7901010).

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

4023630 is a wasteful number, since it uses less digits than its factorization.

4023630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 223 counting only the distinct ones).

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

The square root of 4023630 is about 2005.8988010366. The cubic root of 4023630 is about 159.0520773995.

Adding to 4023630 its reverse (363204), we get a palindrome (4386834).

The spelling of 4023630 in words is "four million, twenty-three thousand, six hundred thirty".