22423043420 has 24 divisors (see below), whose sum is σ = 49566728400. Its totient is φ = 8497153152.

The previous prime is 22423043389. The next prime is 22423043479. The reversal of 22423043420 is 2434032422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22423043420.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29503625 + ... + 29504384.

It is an arithmetic number, because the mean of its divisors is an integer number (2065280350).

Almost surely, 2^22423043420 is an apocalyptic number.

22423043420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22423043420 is an abundant number, since it is smaller than the sum of its proper divisors (27143684980).

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

22423043420 is a wasteful number, since it uses less digits than its factorization.

22423043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59008037 (or 59008035 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 22423043420 its reverse (2434032422), we get a palindrome (24857075842).

The spelling of 22423043420 in words is "twenty-two billion, four hundred twenty-three million, forty-three thousand, four hundred twenty".