22444243420240 has 80 divisors (see below), whose sum is σ = 53596804584960. Its totient is φ = 8734471626240.

The previous prime is 22444243420237. The next prime is 22444243420243. The reversal of 22444243420240 is 4202434244422.

It is an interprime number because it is at equal distance from previous prime (22444243420237) and next prime (22444243420243).

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 22444243420240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444243420243) 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, 45311031 + ... + 45803689.

It is an arithmetic number, because the mean of its divisors is an integer number (669960057312).

Almost surely, 2^{22444243420240} is an apocalyptic number.

22444243420240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444243420240 is an abundant number, since it is smaller than the sum of its proper divisors (31152561164720).

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

22444243420240 is a wasteful number, since it uses less digits than its factorization.

22444243420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508100 (or 508094 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 37.

Adding to 22444243420240 its reverse (4202434244422), we get a palindrome (26646677664662).

The spelling of 22444243420240 in words is "twenty-two trillion, four hundred forty-four billion, two hundred forty-three million, four hundred twenty thousand, two hundred forty".