22444244505040 has 20 divisors (see below), whose sum is σ = 52182868474404. Its totient is φ = 8977697801984.

The previous prime is 22444244505013. The next prime is 22444244505041. The reversal of 22444244505040 is 4050544244422.

It can be written as a sum of positive squares in 2 ways, for example, as 17478887962176 + 4965356542864 = 4180776^2 + 2228308^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×22444244505040² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 22444244504984 and 22444244505002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444244505041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140276528077 + ... + 140276528236.

Almost surely, 2^{22444244505040} is an apocalyptic number.

22444244505040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444244505040 is an abundant number, since it is smaller than the sum of its proper divisors (29738623969364).

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

22444244505040 is a wasteful number, since it uses less digits than its factorization.

22444244505040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280553056326 (or 280553056320 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 40.

Adding to 22444244505040 its reverse (4050544244422), we get a palindrome (26494788749462).

The spelling of 22444244505040 in words is "twenty-two trillion, four hundred forty-four billion, two hundred forty-four million, five hundred five thousand, forty".