22431404420 has 12 divisors (see below), whose sum is σ = 47105949324. Its totient is φ = 8972561760.

The previous prime is 22431404417. The next prime is 22431404453. The reversal of 22431404420 is 2440413422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7134167296 + 15297237124 = 84464^2 + 123682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22431404420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560785091 + ... + 560785130.

It is an arithmetic number, because the mean of its divisors is an integer number (3925495777).

Almost surely, 2^22431404420 is an apocalyptic number.

22431404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22431404420 is an abundant number, since it is smaller than the sum of its proper divisors (24674544904).

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

22431404420 is a wasteful number, since it uses less digits than its factorization.

22431404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121570230 (or 1121570228 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22431404420 its reverse (2440413422), we get a palindrome (24871817842).

The spelling of 22431404420 in words is "twenty-two billion, four hundred thirty-one million, four hundred four thousand, four hundred twenty".