22140040144440 has 128 divisors (see below), whose sum is σ = 69917354496000. Its totient is φ = 5593158240768.

The previous prime is 22140040144427. The next prime is 22140040144451. The reversal of 22140040144440 is 4444104004122.

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 = 22140040144398 and 22140040144407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190543081 + ... + 190659239.

It is an arithmetic number, because the mean of its divisors is an integer number (546229332000).

Almost surely, 2^{22140040144440} is an apocalyptic number.

22140040144440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22140040144440 is an abundant number, since it is smaller than the sum of its proper divisors (47777314351560).

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

22140040144440 is a wasteful number, since it uses less digits than its factorization.

22140040144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199789 (or 199785 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 22140040144440 its reverse (4444104004122), we get a palindrome (26584144148562).

The spelling of 22140040144440 in words is "twenty-two trillion, one hundred forty billion, forty million, one hundred forty-four thousand, four hundred forty".