22420043544 has 32 divisors (see below), whose sum is σ = 56055510000. Its totient is φ = 7472627712.

The previous prime is 22420043543. The next prime is 22420043549. The reversal of 22420043544 is 44534002422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420043543) 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 7 ways as a sum of consecutive naturals, for example, 248232 + ... + 326280.

Almost surely, 2^22420043544 is an apocalyptic number.

22420043544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22420043544 is an abundant number, since it is smaller than the sum of its proper divisors (33635466456).

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

22420043544 is a wasteful number, since it uses less digits than its factorization.

22420043544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90027 (or 90023 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 22420043544 its reverse (44534002422), we get a palindrome (66954045966).

The spelling of 22420043544 in words is "twenty-two billion, four hundred twenty million, forty-three thousand, five hundred forty-four".