4243622430 has 64 divisors (see below), whose sum is σ = 10346807808. Its totient is φ = 1113678720.

The previous prime is 4243622417. The next prime is 4243622437. The reversal of 4243622430 is 342263424.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243622437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1453332 + ... + 1456248.

It is an arithmetic number, because the mean of its divisors is an integer number (161668872).

Almost surely, 2^4243622430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4243622430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5173403904).

4243622430 is an abundant number, since it is smaller than the sum of its proper divisors (6103185378).

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

4243622430 is a wasteful number, since it uses less digits than its factorization.

4243622430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 4243622430 is about 65143.0919591633. The cubic root of 4243622430 is about 1618.9952655701.

Adding to 4243622430 its reverse (342263424), we get a palindrome (4585885854).

The spelling of 4243622430 in words is "four billion, two hundred forty-three million, six hundred twenty-two thousand, four hundred thirty".