22404041440 has 96 divisors (see below), whose sum is σ = 57810866400. Its totient is φ = 8137113600.

The previous prime is 22404041423. The next prime is 22404041449. The reversal of 22404041440 is 4414040422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404041449) 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, 1543336 + ... + 1557784.

It is an arithmetic number, because the mean of its divisors is an integer number (602196525).

Almost surely, 2^22404041440 is an apocalyptic number.

22404041440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22404041440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28905433200).

22404041440 is an abundant number, since it is smaller than the sum of its proper divisors (35406824960).

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

22404041440 is a wasteful number, since it uses less digits than its factorization.

22404041440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15356 (or 15348 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 22404041440 its reverse (4414040422), we get a palindrome (26818081862).

The spelling of 22404041440 in words is "twenty-two billion, four hundred four million, forty-one thousand, four hundred forty".