22440333040 has 80 divisors (see below), whose sum is σ = 55199279520. Its totient is φ = 8460426240.

The previous prime is 22440333011. The next prime is 22440333053. The reversal of 22440333040 is 4033304422.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×22440333040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22440332996 and 22440333014.

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 15 ways as a sum of consecutive naturals, for example, 261970 + ... + 336910.

It is an arithmetic number, because the mean of its divisors is an integer number (689990994).

Almost surely, 2^22440333040 is an apocalyptic number.

22440333040 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 22440333040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27599639760).

22440333040 is an abundant number, since it is smaller than the sum of its proper divisors (32758946480).

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

22440333040 is a wasteful number, since it uses less digits than its factorization.

22440333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75170 (or 75164 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 22440333040 its reverse (4033304422), we get a palindrome (26473637462).

The spelling of 22440333040 in words is "twenty-two billion, four hundred forty million, three hundred thirty-three thousand, forty".