22140548444 has 12 divisors (see below), whose sum is σ = 44281096944. Its totient is φ = 9488806464.

The previous prime is 22140548413. The next prime is 22140548461. The reversal of 22140548444 is 44484504122.

22140548444 is an admirable number.

It is a super-2 number, since 2×22140548444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22140548398 and 22140548407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395366909 + ... + 395366964.

It is an arithmetic number, because the mean of its divisors is an integer number (3690091412).

Almost surely, 2^22140548444 is an apocalyptic number.

It is an amenable number.

22140548444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22140548444 is a wasteful number, since it uses less digits than its factorization.

22140548444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790733884 (or 790733882 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 38.

The spelling of 22140548444 in words is "twenty-two billion, one hundred forty million, five hundred forty-eight thousand, four hundred forty-four".