22041400440 has 64 divisors (see below), whose sum is σ = 67371847200. Its totient is φ = 5766804992.

The previous prime is 22041400429. The next prime is 22041400441. The reversal of 22041400440 is 4400414022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22041400441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726455 + ... + 1739174.

Almost surely, 2^22041400440 is an apocalyptic number.

22041400440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22041400440 is an abundant number, since it is smaller than the sum of its proper divisors (45330446760).

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

22041400440 is a wasteful number, since it uses less digits than its factorization.

22041400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465696 (or 3465692 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22041400440 its reverse (4400414022), we get a palindrome (26441814462).

The spelling of 22041400440 in words is "twenty-two billion, forty-one million, four hundred thousand, four hundred forty".