22044515444 has 12 divisors (see below), whose sum is σ = 44089030944. Its totient is φ = 9447649464.

The previous prime is 22044515419. The next prime is 22044515447. The reversal of 22044515444 is 44451544022.

It is a happy number.

22044515444 is an admirable number.

It is a super-2 number, since 2×22044515444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044515447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 393652034 + ... + 393652089.

It is an arithmetic number, because the mean of its divisors is an integer number (3674085912).

Almost surely, 2^22044515444 is an apocalyptic number.

It is an amenable number.

22044515444 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.

22044515444 is a wasteful number, since it uses less digits than its factorization.

22044515444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787304134 (or 787304132 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

The spelling of 22044515444 in words is "twenty-two billion, forty-four million, five hundred fifteen thousand, four hundred forty-four".