22444456240 has 40 divisors (see below), whose sum is σ = 52515768240. Its totient is φ = 8920594176.

The previous prime is 22444456231. The next prime is 22444456247. The reversal of 22444456240 is 4265444422.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22444456240.

It is not an unprimeable number, because it can be changed into a prime (22444456247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 880930 + ... + 906049.

It is an arithmetic number, because the mean of its divisors is an integer number (1312894206).

Almost surely, 2^22444456240 is an apocalyptic number.

22444456240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444456240 is an abundant number, since it is smaller than the sum of its proper divisors (30071312000).

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

22444456240 is a wasteful number, since it uses less digits than its factorization.

22444456240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787149 (or 1787143 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

The spelling of 22444456240 in words is "twenty-two billion, four hundred forty-four million, four hundred fifty-six thousand, two hundred forty".