22442422240 has 96 divisors (see below), whose sum is σ = 60642086400. Its totient is φ = 7688507904.

The previous prime is 22442422231. The next prime is 22442422253. The reversal of 22442422240 is 4222424422.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 22442422199 and 22442422208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559719 + ... + 1574041.

It is an arithmetic number, because the mean of its divisors is an integer number (631688400).

Almost surely, 2^22442422240 is an apocalyptic number.

22442422240 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 22442422240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30321043200).

22442422240 is an abundant number, since it is smaller than the sum of its proper divisors (38199664160).

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

22442422240 is a wasteful number, since it uses less digits than its factorization.

22442422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15744 (or 15736 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22442422240 its reverse (4222424422), we get a palindrome (26664846662).

The spelling of 22442422240 in words is "twenty-two billion, four hundred forty-two million, four hundred twenty-two thousand, two hundred forty".