2243122420440 has 128 divisors (see below), whose sum is σ = 7727503161600. Its totient is φ = 515166865920.

The previous prime is 2243122420433. The next prime is 2243122420453. The reversal of 2243122420440 is 440242213422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2243122420398 and 2243122420407.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 44694267 + ... + 44744426.

It is an arithmetic number, because the mean of its divisors is an integer number (60371118450).

Almost surely, 2^{2243122420440} is an apocalyptic number.

2243122420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243122420440 is an abundant number, since it is smaller than the sum of its proper divisors (5484380741160).

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

2243122420440 is a wasteful number, since it uses less digits than its factorization.

2243122420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89438737 (or 89438733 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 2243122420440 its reverse (440242213422), we get a palindrome (2683364633862).

The spelling of 2243122420440 in words is "two trillion, two hundred forty-three billion, one hundred twenty-two million, four hundred twenty thousand, four hundred forty".