22244020240 has 80 divisors (see below), whose sum is σ = 57492320256. Its totient is φ = 7948224000.

The previous prime is 22244020237. The next prime is 22244020241. The reversal of 22244020240 is 4202044222.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22244020241) 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, 312736 + ... + 377215.

Almost surely, 2^22244020240 is an apocalyptic number.

22244020240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244020240 is an abundant number, since it is smaller than the sum of its proper divisors (35248300016).

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

22244020240 is a wasteful number, since it uses less digits than its factorization.

22244020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690008 (or 690002 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22244020240 its reverse (4202044222), we get a palindrome (26446064462).

The spelling of 22244020240 in words is "twenty-two billion, two hundred forty-four million, twenty thousand, two hundred forty".